diff --git a/01-regular-expressions.html b/01-regular-expressions.html
index 344ea3b5..b3835806 100644
--- a/01-regular-expressions.html
+++ b/01-regular-expressions.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Regular Expressions</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Regular Expressions</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: 0%" class="percentage">
@@ -484,7 +484,7 @@ <h3 class="callout-title">Using special characters in regular expression matches
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">organize</span></span>
@@ -539,7 +539,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w*</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organize</span></span>
@@ -571,7 +571,7 @@ <h3 class="callout-title"><code>[Oo]rgani.e\w+$</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -603,7 +603,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -635,7 +635,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?$</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -667,7 +667,7 @@ <h3 class="callout-title"><code>\b[Oo]rgani.e\w{2}\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <pre><code><span><span class="va">organisers</span></span>
 <span><span class="va">Organizers</span></span>
@@ -699,7 +699,7 @@ <h3 class="callout-title"><code>\b[Oo]rgani.e\b|\b[Oo]rgani.e\w{1}\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organi1e</span></span>
@@ -757,7 +757,7 @@ <h3 class="callout-title">Using square brackets</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -790,7 +790,7 @@ <h3 class="callout-title">Using dollar signs</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -821,7 +821,7 @@ <h3 class="callout-title">Introducing options</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution10" aria-expanded="false" aria-controls="collapseSolution10">
   <h4 class="accordion-header" id="headingSolution10"> Show me the solution </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <pre><code>^France|^French</code></pre>
 <p>This will also find words where there were characters after
@@ -847,7 +847,7 @@ <h3 class="callout-title">Case insensitivity</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution11" aria-expanded="false" aria-controls="collapseSolution11">
   <h4 class="accordion-header" id="headingSolution11"> Solutions </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
 <div class="accordion-body">
 <pre><code>\b[Cc]olou?r\b|\bCOLOU?R\b
 /colou?r/i</code></pre>
@@ -886,7 +886,7 @@ <h3 class="callout-title">Word boundaries</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution12" aria-expanded="false" aria-controls="collapseSolution12">
   <h4 class="accordion-header" id="headingSolution12"> Show me the solution </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
 <div class="accordion-body">
 <pre><code>\bhead ?rest\b</code></pre>
 <p>Note that although <code>\bhead\s?rest\b</code> does work, it will
@@ -914,7 +914,7 @@ <h3 class="callout-title">Matching non-linguistic patterns</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution13" aria-expanded="false" aria-controls="collapseSolution13">
   <h4 class="accordion-header" id="headingSolution13"> Show me the solution </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
 <div class="accordion-body">
 <pre><code>0+[A-Za-z]{4}\b</code></pre>
 </div>
@@ -937,7 +937,7 @@ <h3 class="callout-title">Matching digits</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution14" aria-expanded="false" aria-controls="collapseSolution14">
   <h4 class="accordion-header" id="headingSolution14"> Show me the solution </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
 <div class="accordion-body">
 <pre><code>\d{4}</code></pre>
 <p>Note: this will also match four-digit strings within longer strings
@@ -962,7 +962,7 @@ <h3 class="callout-title">Matching dates</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution15" aria-expanded="false" aria-controls="collapseSolution15">
   <h4 class="accordion-header" id="headingSolution15"> Show me the solution </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
 <div class="accordion-body">
 <pre><code>\b\d{2}-\d{2}-\d{4}\b</code></pre>
 <p>Depending on your data, you may choose to remove the word
@@ -988,7 +988,7 @@ <h3 class="callout-title">Matching multiple date formats</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution16" aria-expanded="false" aria-controls="collapseSolution16">
   <h4 class="accordion-header" id="headingSolution16"> Show me the solution </h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
 <div class="accordion-body">
 <pre><code>\d{2}-\d{2}-\d{2,4}$</code></pre>
 <p>Note this will also find strings such as <code>31-01-198</code> at
@@ -1017,7 +1017,7 @@ <h3 class="callout-title">Matching publication formats</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution17" aria-expanded="false" aria-controls="collapseSolution17">
   <h4 class="accordion-header" id="headingSolution17"> Show me the solution </h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
diff --git a/02-match-extract-strings.html b/02-match-extract-strings.html
index 11cabc7c..b8ad8c4f 100644
--- a/02-match-extract-strings.html
+++ b/02-match-extract-strings.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Matching &amp; Extracting Strings</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Matching &amp; Extracting Strings</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: 20%" class="percentage">
diff --git a/03-quiz.html b/03-quiz.html
index 4aeda422..66f3c6e6 100644
--- a/03-quiz.html
+++ b/03-quiz.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Multiple Choice Quiz</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Multiple Choice Quiz</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: 37%" class="percentage">
diff --git a/04-exercises.html b/04-exercises.html
index 26cb8e23..f5f85bc0 100644
--- a/04-exercises.html
+++ b/04-exercises.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Exercises</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Exercises</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: 71%" class="percentage">
diff --git a/404.html b/404.html
index a6e5220a..9a64069b 100644
--- a/404.html
+++ b/404.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Page not found</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="https://librarycarpentry.github.io/lc-data-intro/assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="https://librarycarpentry.github.io/lc-data-intro/assets/styles.css"><script src="https://librarycarpentry.github.io/lc-data-intro/assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Page not found</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="https://librarycarpentry.github.io/lc-data-intro/assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="https://librarycarpentry.github.io/lc-data-intro/assets/styles.css"><script src="https://librarycarpentry.github.io/lc-data-intro/assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="https://librarycarpentry.github.io/lc-data-intro/assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -106,7 +106,7 @@
     <a id="search-button" class="external-link btn btn-primary" href="https://librarycarpentry.github.io/lc-data-intro/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index d25dae3a..8b66d702 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Contributor Code of Conduct</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Contributor Code of Conduct</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: NA%" class="percentage">
diff --git a/LICENSE.html b/LICENSE.html
index d09f42e0..e7fea53e 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Licenses</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Licenses</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: NA%" class="percentage">
diff --git a/aio.html b/aio.html
index 409636de..9050ad0b 100644
--- a/aio.html
+++ b/aio.html
@@ -3,7 +3,7 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <meta charset="utf-8">
-<title>Library Carpentry: Introduction to Working with Data (Regular Expressions): All in One View</title>
+<title>Library Carpentry: Introduction to Regular Expressions: All in One View</title>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css">
 <script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
@@ -85,7 +85,7 @@
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg">
 </div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -96,7 +96,7 @@
       <ul class="navbar-nav me-auto mb-2 mb-lg-0">
 <li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -133,7 +133,7 @@
   </div>
 <!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
@@ -532,7 +532,7 @@ <h3 class="callout-title">Using special characters in regular expression matches
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">organize</span></span>
@@ -589,7 +589,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w*</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organize</span></span>
@@ -621,7 +621,7 @@ <h3 class="callout-title"><code>[Oo]rgani.e\w+$</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -653,7 +653,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -685,7 +685,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?$</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -717,7 +717,7 @@ <h3 class="callout-title"><code>\b[Oo]rgani.e\w{2}\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <pre><code><span><span class="va">organisers</span></span>
 <span><span class="va">Organizers</span></span>
@@ -749,7 +749,7 @@ <h3 class="callout-title"><code>\b[Oo]rgani.e\b|\b[Oo]rgani.e\w{1}\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organi1e</span></span>
@@ -808,7 +808,7 @@ <h3 class="callout-title">Using square brackets</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -841,7 +841,7 @@ <h3 class="callout-title">Using dollar signs</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -872,7 +872,7 @@ <h3 class="callout-title">Introducing options</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution10" aria-expanded="false" aria-controls="collapseSolution10">
   <h4 class="accordion-header" id="headingSolution10"> Show me the solution </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <pre><code>^France|^French</code></pre>
 <p>This will also find words where there were characters after
@@ -898,7 +898,7 @@ <h3 class="callout-title">Case insensitivity</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution11" aria-expanded="false" aria-controls="collapseSolution11">
   <h4 class="accordion-header" id="headingSolution11"> Solutions </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
 <div class="accordion-body">
 <pre><code>\b[Cc]olou?r\b|\bCOLOU?R\b
 /colou?r/i</code></pre>
@@ -937,7 +937,7 @@ <h3 class="callout-title">Word boundaries</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution12" aria-expanded="false" aria-controls="collapseSolution12">
   <h4 class="accordion-header" id="headingSolution12"> Show me the solution </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
 <div class="accordion-body">
 <pre><code>\bhead ?rest\b</code></pre>
 <p>Note that although <code>\bhead\s?rest\b</code> does work, it will
@@ -965,7 +965,7 @@ <h3 class="callout-title">Matching non-linguistic patterns</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution13" aria-expanded="false" aria-controls="collapseSolution13">
   <h4 class="accordion-header" id="headingSolution13"> Show me the solution </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
 <div class="accordion-body">
 <pre><code>0+[A-Za-z]{4}\b</code></pre>
 </div>
@@ -988,7 +988,7 @@ <h3 class="callout-title">Matching digits</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution14" aria-expanded="false" aria-controls="collapseSolution14">
   <h4 class="accordion-header" id="headingSolution14"> Show me the solution </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
 <div class="accordion-body">
 <pre><code>\d{4}</code></pre>
 <p>Note: this will also match four-digit strings within longer strings
@@ -1013,7 +1013,7 @@ <h3 class="callout-title">Matching dates</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution15" aria-expanded="false" aria-controls="collapseSolution15">
   <h4 class="accordion-header" id="headingSolution15"> Show me the solution </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
 <div class="accordion-body">
 <pre><code>\b\d{2}-\d{2}-\d{4}\b</code></pre>
 <p>Depending on your data, you may choose to remove the word
@@ -1039,7 +1039,7 @@ <h3 class="callout-title">Matching multiple date formats</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution16" aria-expanded="false" aria-controls="collapseSolution16">
   <h4 class="accordion-header" id="headingSolution16"> Show me the solution </h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
 <div class="accordion-body">
 <pre><code>\d{2}-\d{2}-\d{2,4}$</code></pre>
 <p>Note this will also find strings such as <code>31-01-198</code> at
@@ -1068,7 +1068,7 @@ <h3 class="callout-title">Matching publication formats</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution17" aria-expanded="false" aria-controls="collapseSolution17">
   <h4 class="accordion-header" id="headingSolution17"> Show me the solution </h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
diff --git a/config.yaml b/config.yaml
index 47aa6e56..d7d58ee8 100644
--- a/config.yaml
+++ b/config.yaml
@@ -11,7 +11,7 @@
 carpentry: 'lc'
 
 # Overall title for pages.
-title: 'Library Carpentry: Introduction to Working with Data (Regular Expressions)'
+title: 'Library Carpentry: Introduction to Regular Expressions'
 
 # Date the lesson was created (YYYY-MM-DD, this is empty by default)
 created: '2018-04-12'
diff --git a/discuss.html b/discuss.html
index 99540202..20adb1e4 100644
--- a/discuss.html
+++ b/discuss.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Discussion</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Discussion</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
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@@ -63,7 +63,7 @@
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       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
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diff --git a/images.html b/images.html
index 2eaae373..bfbaf3af 100644
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@@ -3,7 +3,7 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-<title>Library Carpentry: Introduction to Working with Data (Regular Expressions): All Images</title>
+<title>Library Carpentry: Introduction to Regular Expressions: All Images</title>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css">
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@@ -85,7 +85,7 @@
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg">
 </div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
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       <!-- TODO: do not show until we have search
@@ -96,7 +96,7 @@
       <ul class="navbar-nav me-auto mb-2 mb-lg-0">
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-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
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         <li class="nav-item">
@@ -133,7 +133,7 @@
   </div>
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 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
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diff --git a/index.html b/index.html
index e66fd9f6..cf112e3f 100644
--- a/index.html
+++ b/index.html
@@ -1,5 +1,5 @@
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-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Summary and Setup</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Summary and Setup</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
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       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
@@ -364,7 +364,7 @@ <h3 id="this-lesson-does-not-require-any-special-setup-">This lesson does not re
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   "description": "A Carpentries Lesson teaching foundational data and coding skills to researchers worldwide",
   "keywords": "software, data, lesson, The Carpentries",
-  "name": "Library Carpentry: Introduction to Working with Data (Regular Expressions)",
+  "name": "Library Carpentry: Introduction to Regular Expressions",
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   "url": "https://librarycarpentry.github.io/lc-data-intro/index.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/index.html",
diff --git a/instructor-notes.html b/instructor-notes.html
index a3480c65..fb3516ad 100644
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+++ b/instructor-notes.html
@@ -3,7 +3,7 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <meta charset="utf-8">
-<title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Instructor Notes</title>
+<title>Library Carpentry: Introduction to Regular Expressions: Instructor Notes</title>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css">
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@@ -85,7 +85,7 @@
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg">
 </div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -96,7 +96,7 @@
       <ul class="navbar-nav me-auto mb-2 mb-lg-0">
 <li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -133,7 +133,7 @@
   </div>
 <!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
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diff --git a/instructor/01-regular-expressions.html b/instructor/01-regular-expressions.html
index 45f9c30d..dfe4fc21 100644
--- a/instructor/01-regular-expressions.html
+++ b/instructor/01-regular-expressions.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Regular Expressions</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Regular Expressions</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
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       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="../instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: 0%" class="percentage">
@@ -486,7 +486,7 @@ <h3 class="callout-title">Using special characters in regular expression matches
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">organize</span></span>
@@ -541,7 +541,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w*</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organize</span></span>
@@ -573,7 +573,7 @@ <h3 class="callout-title"><code>[Oo]rgani.e\w+$</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -605,7 +605,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -637,7 +637,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?$</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -669,7 +669,7 @@ <h3 class="callout-title"><code>\b[Oo]rgani.e\w{2}\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <pre><code><span><span class="va">organisers</span></span>
 <span><span class="va">Organizers</span></span>
@@ -701,7 +701,7 @@ <h3 class="callout-title"><code>\b[Oo]rgani.e\b|\b[Oo]rgani.e\w{1}\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organi1e</span></span>
@@ -759,7 +759,7 @@ <h3 class="callout-title">Using square brackets</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -792,7 +792,7 @@ <h3 class="callout-title">Using dollar signs</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -823,7 +823,7 @@ <h3 class="callout-title">Introducing options</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution10" aria-expanded="false" aria-controls="collapseSolution10">
   <h4 class="accordion-header" id="headingSolution10"> Show me the solution </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <pre><code>^France|^French</code></pre>
 <p>This will also find words where there were characters after
@@ -849,7 +849,7 @@ <h3 class="callout-title">Case insensitivity</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution11" aria-expanded="false" aria-controls="collapseSolution11">
   <h4 class="accordion-header" id="headingSolution11"> Solutions </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
 <div class="accordion-body">
 <pre><code>\b[Cc]olou?r\b|\bCOLOU?R\b
 /colou?r/i</code></pre>
@@ -888,7 +888,7 @@ <h3 class="callout-title">Word boundaries</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution12" aria-expanded="false" aria-controls="collapseSolution12">
   <h4 class="accordion-header" id="headingSolution12"> Show me the solution </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
 <div class="accordion-body">
 <pre><code>\bhead ?rest\b</code></pre>
 <p>Note that although <code>\bhead\s?rest\b</code> does work, it will
@@ -916,7 +916,7 @@ <h3 class="callout-title">Matching non-linguistic patterns</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution13" aria-expanded="false" aria-controls="collapseSolution13">
   <h4 class="accordion-header" id="headingSolution13"> Show me the solution </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
 <div class="accordion-body">
 <pre><code>0+[A-Za-z]{4}\b</code></pre>
 </div>
@@ -939,7 +939,7 @@ <h3 class="callout-title">Matching digits</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution14" aria-expanded="false" aria-controls="collapseSolution14">
   <h4 class="accordion-header" id="headingSolution14"> Show me the solution </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
 <div class="accordion-body">
 <pre><code>\d{4}</code></pre>
 <p>Note: this will also match four-digit strings within longer strings
@@ -964,7 +964,7 @@ <h3 class="callout-title">Matching dates</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution15" aria-expanded="false" aria-controls="collapseSolution15">
   <h4 class="accordion-header" id="headingSolution15"> Show me the solution </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
 <div class="accordion-body">
 <pre><code>\b\d{2}-\d{2}-\d{4}\b</code></pre>
 <p>Depending on your data, you may choose to remove the word
@@ -990,7 +990,7 @@ <h3 class="callout-title">Matching multiple date formats</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution16" aria-expanded="false" aria-controls="collapseSolution16">
   <h4 class="accordion-header" id="headingSolution16"> Show me the solution </h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
 <div class="accordion-body">
 <pre><code>\d{2}-\d{2}-\d{2,4}$</code></pre>
 <p>Note this will also find strings such as <code>31-01-198</code> at
@@ -1019,7 +1019,7 @@ <h3 class="callout-title">Matching publication formats</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution17" aria-expanded="false" aria-controls="collapseSolution17">
   <h4 class="accordion-header" id="headingSolution17"> Show me the solution </h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
diff --git a/instructor/02-match-extract-strings.html b/instructor/02-match-extract-strings.html
index 43238138..e31021b7 100644
--- a/instructor/02-match-extract-strings.html
+++ b/instructor/02-match-extract-strings.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Matching &amp; Extracting Strings</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Matching &amp; Extracting Strings</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="../instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: 20%" class="percentage">
diff --git a/instructor/03-quiz.html b/instructor/03-quiz.html
index 6374ff24..e72a6988 100644
--- a/instructor/03-quiz.html
+++ b/instructor/03-quiz.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Multiple Choice Quiz</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Multiple Choice Quiz</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="../instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: 37%" class="percentage">
diff --git a/instructor/04-exercises.html b/instructor/04-exercises.html
index 9f068671..ccab0780 100644
--- a/instructor/04-exercises.html
+++ b/instructor/04-exercises.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Exercises</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Exercises</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="../instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: 71%" class="percentage">
diff --git a/instructor/404.html b/instructor/404.html
index cac5770c..5074a225 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Page not found</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="https://librarycarpentry.github.io/lc-data-intro/assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="https://librarycarpentry.github.io/lc-data-intro/assets/styles.css"><script src="https://librarycarpentry.github.io/lc-data-intro/assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Page not found</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="https://librarycarpentry.github.io/lc-data-intro/assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="https://librarycarpentry.github.io/lc-data-intro/assets/styles.css"><script src="https://librarycarpentry.github.io/lc-data-intro/assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="https://librarycarpentry.github.io/lc-data-intro/assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -106,7 +106,7 @@
     <a id="search-button" class="external-link btn btn-primary" href="https://librarycarpentry.github.io/lc-data-intro/instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index d44ce2d2..a1290e62 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Contributor Code of Conduct</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Contributor Code of Conduct</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="../instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: NA%" class="percentage">
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 292ff3f5..8f144c27 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Licenses</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Licenses</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="../instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: NA%" class="percentage">
diff --git a/instructor/aio.html b/instructor/aio.html
index dea6ae0f..7f7c4458 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -3,7 +3,7 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <meta charset="utf-8">
-<title>Library Carpentry: Introduction to Working with Data (Regular Expressions): All in One View</title>
+<title>Library Carpentry: Introduction to Regular Expressions: All in One View</title>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css">
 <script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
@@ -85,7 +85,7 @@
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg">
 </div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -96,7 +96,7 @@
       <ul class="navbar-nav me-auto mb-2 mb-lg-0">
 <li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -134,7 +134,7 @@
   </div>
 <!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
@@ -535,7 +535,7 @@ <h3 class="callout-title">Using special characters in regular expression matches
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">organize</span></span>
@@ -592,7 +592,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w*</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organize</span></span>
@@ -624,7 +624,7 @@ <h3 class="callout-title"><code>[Oo]rgani.e\w+$</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -656,7 +656,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -688,7 +688,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?$</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -720,7 +720,7 @@ <h3 class="callout-title"><code>\b[Oo]rgani.e\w{2}\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <pre><code><span><span class="va">organisers</span></span>
 <span><span class="va">Organizers</span></span>
@@ -752,7 +752,7 @@ <h3 class="callout-title"><code>\b[Oo]rgani.e\b|\b[Oo]rgani.e\w{1}\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution7" aria-expanded="false" aria-controls="collapseSolution7">
   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organi1e</span></span>
@@ -811,7 +811,7 @@ <h3 class="callout-title">Using square brackets</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -844,7 +844,7 @@ <h3 class="callout-title">Using dollar signs</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution9" aria-expanded="false" aria-controls="collapseSolution9">
   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -875,7 +875,7 @@ <h3 class="callout-title">Introducing options</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution10" aria-expanded="false" aria-controls="collapseSolution10">
   <h4 class="accordion-header" id="headingSolution10"> Show me the solution </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <pre><code>^France|^French</code></pre>
 <p>This will also find words where there were characters after
@@ -901,7 +901,7 @@ <h3 class="callout-title">Case insensitivity</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution11" aria-expanded="false" aria-controls="collapseSolution11">
   <h4 class="accordion-header" id="headingSolution11"> Solutions </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
 <div class="accordion-body">
 <pre><code>\b[Cc]olou?r\b|\bCOLOU?R\b
 /colou?r/i</code></pre>
@@ -940,7 +940,7 @@ <h3 class="callout-title">Word boundaries</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution12" aria-expanded="false" aria-controls="collapseSolution12">
   <h4 class="accordion-header" id="headingSolution12"> Show me the solution </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
 <div class="accordion-body">
 <pre><code>\bhead ?rest\b</code></pre>
 <p>Note that although <code>\bhead\s?rest\b</code> does work, it will
@@ -968,7 +968,7 @@ <h3 class="callout-title">Matching non-linguistic patterns</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution13" aria-expanded="false" aria-controls="collapseSolution13">
   <h4 class="accordion-header" id="headingSolution13"> Show me the solution </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
 <div class="accordion-body">
 <pre><code>0+[A-Za-z]{4}\b</code></pre>
 </div>
@@ -991,7 +991,7 @@ <h3 class="callout-title">Matching digits</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution14" aria-expanded="false" aria-controls="collapseSolution14">
   <h4 class="accordion-header" id="headingSolution14"> Show me the solution </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
 <div class="accordion-body">
 <pre><code>\d{4}</code></pre>
 <p>Note: this will also match four-digit strings within longer strings
@@ -1016,7 +1016,7 @@ <h3 class="callout-title">Matching dates</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution15" aria-expanded="false" aria-controls="collapseSolution15">
   <h4 class="accordion-header" id="headingSolution15"> Show me the solution </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
 <div class="accordion-body">
 <pre><code>\b\d{2}-\d{2}-\d{4}\b</code></pre>
 <p>Depending on your data, you may choose to remove the word
@@ -1042,7 +1042,7 @@ <h3 class="callout-title">Matching multiple date formats</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution16" aria-expanded="false" aria-controls="collapseSolution16">
   <h4 class="accordion-header" id="headingSolution16"> Show me the solution </h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
 <div class="accordion-body">
 <pre><code>\d{2}-\d{2}-\d{2,4}$</code></pre>
 <p>Note this will also find strings such as <code>31-01-198</code> at
@@ -1071,7 +1071,7 @@ <h3 class="callout-title">Matching publication formats</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution17" aria-expanded="false" aria-controls="collapseSolution17">
   <h4 class="accordion-header" id="headingSolution17"> Show me the solution </h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
diff --git a/instructor/discuss.html b/instructor/discuss.html
index 5b232648..bff2b3e0 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Discussion</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Discussion</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="../instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: NA%" class="percentage">
diff --git a/instructor/images.html b/instructor/images.html
index 1561c723..09de2f0b 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -3,7 +3,7 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <meta charset="utf-8">
-<title>Library Carpentry: Introduction to Working with Data (Regular Expressions): All Images</title>
+<title>Library Carpentry: Introduction to Regular Expressions: All Images</title>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css">
 <script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
@@ -85,7 +85,7 @@
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg">
 </div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -96,7 +96,7 @@
       <ul class="navbar-nav me-auto mb-2 mb-lg-0">
 <li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -134,7 +134,7 @@
   </div>
 <!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
diff --git a/instructor/index.html b/instructor/index.html
index d7fae3cf..169d16fc 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -1,5 +1,5 @@
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-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Summary and Schedule</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Summary and Schedule</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="../instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
@@ -413,7 +413,7 @@ <h3 id="this-lesson-does-not-require-any-special-setup-">This lesson does not re
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   "keywords": "software, data, lesson, The Carpentries",
-  "name": "Library Carpentry: Introduction to Working with Data (Regular Expressions)",
+  "name": "Library Carpentry: Introduction to Regular Expressions",
   "creativeWorkStatus": "active",
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/index.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/index.html",
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 08b8d526..2ab60607 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -3,7 +3,7 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <meta charset="utf-8">
-<title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Instructor Notes</title>
+<title>Library Carpentry: Introduction to Regular Expressions: Instructor Notes</title>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css">
 <script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
@@ -85,7 +85,7 @@
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 </div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -96,7 +96,7 @@
       <ul class="navbar-nav me-auto mb-2 mb-lg-0">
 <li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -134,7 +134,7 @@
   </div>
 <!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
diff --git a/instructor/key-points.html b/instructor/key-points.html
index a8fa9318..73062f2b 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -3,7 +3,7 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <meta charset="utf-8">
-<title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Key Points</title>
+<title>Library Carpentry: Introduction to Regular Expressions: Key Points</title>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css">
 <script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
@@ -85,7 +85,7 @@
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg">
 </div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -96,7 +96,7 @@
       <ul class="navbar-nav me-auto mb-2 mb-lg-0">
 <li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -134,7 +134,7 @@
   </div>
 <!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
diff --git a/instructor/profiles.html b/instructor/profiles.html
index 5658d1db..dfc0c5cf 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Learner Profiles</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Learner Profiles</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
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       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="../instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
diff --git a/instructor/reference.html b/instructor/reference.html
index f946dc53..94b9f910 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -1,5 +1,5 @@
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-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Regular Expression Cheat Sheet</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Regular Expression Cheat Sheet</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="../assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="../assets/styles.css"><script src="../assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
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@@ -63,7 +63,7 @@
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       <img class="small-logo" alt="Library Carpentry" src="../assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="../instructor/aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: NA%" class="percentage">
diff --git a/key-points.html b/key-points.html
index 78a2d961..062b2a6b 100644
--- a/key-points.html
+++ b/key-points.html
@@ -3,7 +3,7 @@
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 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <meta charset="utf-8">
-<title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Key Points</title>
+<title>Library Carpentry: Introduction to Regular Expressions: Key Points</title>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css">
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@@ -85,7 +85,7 @@
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 </div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -96,7 +96,7 @@
       <ul class="navbar-nav me-auto mb-2 mb-lg-0">
 <li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -133,7 +133,7 @@
   </div>
 <!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
diff --git a/md5sum.txt b/md5sum.txt
index d68f0f78..d1bd930f 100644
--- a/md5sum.txt
+++ b/md5sum.txt
@@ -1,7 +1,7 @@
 "file" "checksum" "built" "date"
 "CODE_OF_CONDUCT.md" "c93c83c630db2fe2462240bf72552548" "site/built/CODE_OF_CONDUCT.md" "2023-05-03"
 "LICENSE.md" "b24ebbb41b14ca25cf6b8216dda83e5f" "site/built/LICENSE.md" "2023-05-03"
-"config.yaml" "3a01e3b7adc9f5a4c0c480fa2a99acb7" "site/built/config.yaml" "2023-05-03"
+"config.yaml" "cd55856a02dcd0fae982a33c849a5afa" "site/built/config.yaml" "2024-12-09"
 "index.md" "2af31ad735fde7f32cb5b1ec9739dac6" "site/built/index.md" "2024-12-09"
 "episodes/01-regular-expressions.md" "a99a9eb670c86dd62b92c5dfd4ae8938" "site/built/01-regular-expressions.md" "2024-09-30"
 "episodes/02-match-extract-strings.md" "d47fea09e2ff56810f19a2f3fc4fa7f3" "site/built/02-match-extract-strings.md" "2024-10-15"
diff --git a/profiles.html b/profiles.html
index 3694e251..52219943 100644
--- a/profiles.html
+++ b/profiles.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Learner Profiles</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Learner Profiles</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: %" class="percentage">
diff --git a/reference.html b/reference.html
index 3d052735..15c6c48d 100644
--- a/reference.html
+++ b/reference.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Working with Data (Regular Expressions): Regular Expression Cheat Sheet</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
+<!-- START: inst/pkgdown/templates/layout.html --><!-- Generated by pkgdown: do not edit by hand --><html lang="en" data-bs-theme="auto"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><title>Library Carpentry: Introduction to Regular Expressions: Regular Expression Cheat Sheet</title><meta name="viewport" content="width=device-width, initial-scale=1"><script src="assets/themetoggle.js"></script><link rel="stylesheet" type="text/css" href="assets/styles.css"><script src="assets/scripts.js" type="text/javascript"></script><!-- mathjax --><script type="text/x-mathjax-config">
     MathJax.Hub.Config({
       config: ["MMLorHTML.js"],
       jax: ["input/TeX","input/MathML","output/HTML-CSS","output/NativeMML", "output/PreviewHTML"],
@@ -63,7 +63,7 @@
     <div class="nav-logo">
       <img class="small-logo" alt="Library Carpentry" src="assets/images/library-logo-sm.svg"></div>
     <div class="lesson-title-md">
-      Library Carpentry: Introduction to Working with Data (Regular Expressions)
+      Library Carpentry: Introduction to Regular Expressions
     </div>
     <div class="search-icon-sm">
       <!-- TODO: do not show until we have search
@@ -73,7 +73,7 @@
     <div class="desktop-nav">
       <ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item">
           <span class="lesson-title">
-            Library Carpentry: Introduction to Working with Data (Regular Expressions)
+            Library Carpentry: Introduction to Regular Expressions
           </span>
         </li>
         <li class="nav-item">
@@ -105,7 +105,7 @@
     <a id="search-button" class="btn btn-primary" href="aio.html" role="button" aria-label="Search the All In One page">Search the All In One page</a>
   </div><!--/div.container-fluid -->
 </nav><div class="col-md-12 mobile-title">
-  Library Carpentry: Introduction to Working with Data (Regular Expressions)
+  Library Carpentry: Introduction to Regular Expressions
 </div>
 
 <aside class="col-md-12 lesson-progress"><div style="width: NA%" class="percentage">
