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@@ -484,7 +484,7 @@ <h3 class="callout-title">Using special characters in regular expression matches
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 <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>
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 <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+$</code></h3>
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 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -603,7 +603,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?\b</code></h3>
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 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -635,7 +635,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?$</code></h3>
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 <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>
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 <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>
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 <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>
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 <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>
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 <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>
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 <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>
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 <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>
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 <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>
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 <pre><code>0+[A-Za-z]{4}\b</code></pre>
 </div>
@@ -937,7 +937,7 @@ <h3 class="callout-title">Matching digits</h3>
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 <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>
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 <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>
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 <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>
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 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
@@ -1100,7 +1100,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/01-regular-expressions.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-09-30",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/02-match-extract-strings.html b/02-match-extract-strings.html
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@@ -366,7 +366,7 @@ <h3 class="callout-title">Taking spaces into consideration</h3>
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 <div class="accordion-body">
 <p>The string ‘community-led’ matches the first search, but drops out of
 this result because the space does not match the character
@@ -392,7 +392,7 @@ <h3 class="callout-title">Taking any character into consideration</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
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 <p>For instance, <code>\S+\b</code>. This would match one or more
 non-space characters followed by a word boundary.</p>
@@ -417,7 +417,7 @@ <h3 class="callout-title">Exploring effect of expressions matching different wor
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
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 <p>Because the string ‘communi’ is present in all of those words,
 including <code>communi</code>cation and <code>communi</code>ty. Because
@@ -446,7 +446,7 @@ <h3 class="callout-title">Taking capitalization into consideration</h3>
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 <p>The pattern <code>communi</code> with either a capital <code>C</code>
 or lowercase <code>c</code> is present in the text 16 times.</p>
@@ -471,7 +471,7 @@ <h3 class="callout-title">Regex characters that indicate location</h3>
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 <p>There is no matching string present at the start of a line. Look at
 the text and replace the string after the <code>^</code> with something
@@ -496,7 +496,7 @@ <h3 class="callout-title">Finding plurals</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
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 <pre><code>[Cc]omm\w+s\b</code></pre>
 <p><code>[Cc]</code> finds capital and lowercase <code>c</code></p>
@@ -531,7 +531,7 @@ <h3 class="callout-title">Start with what you know</h3>
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 <p>The ‘@’ character.</p>
 </div>
@@ -558,7 +558,7 @@ <h3 class="callout-title">Add to what you know</h3>
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 <pre><code>[\w.-]+@</code></pre>
 <p><code>\w</code> matches any word character (including digits and
@@ -601,7 +601,7 @@ <h3 class="callout-title">Finish the expression</h3>
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 <pre><code>[\w.-]+\.\w{2,3} OR [\w.-]+\.\w+</code></pre>
 <p>See the previous exercise for the explanation of the expression up to
@@ -647,7 +647,7 @@ <h3 class="callout-title">Start with what you know: find strings of digits</h3>
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 <pre><code>\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -678,7 +678,7 @@ <h3 class="callout-title">Match a string that includes an area code with a dash<
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 <pre><code>\d{3}-\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -711,7 +711,7 @@ <h3 class="callout-title">Match a string that includes an area code within paren
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution12" aria-expanded="false" aria-controls="collapseSolution12">
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 <pre><code>\(\d{3}\) ?\d{3}-\d{4}</code></pre>
 <p><code>\(</code> escape character with the parenthesis as
@@ -746,7 +746,7 @@ <h3 class="callout-title">Match a phone number containing a country code.</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution13" aria-expanded="false" aria-controls="collapseSolution13">
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 </button>
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 <pre><code>\+\d{1,3} ?\(\d{3}\)\s?\d{3}-\d{4}</code></pre>
 <p><code>\+</code> escape character with the plus sign as
@@ -812,7 +812,7 @@ <h3 class="callout-title">Extracting a substring in Google Sheets using regex</h
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 <p>This is one way to solve this challenge. You might have found others.
 Inside the cell you can use the below to extract the latitude and
@@ -908,7 +908,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/02-match-extract-strings.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-10-15",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
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   "identifier": "https://librarycarpentry.github.io/lc-data-intro/03-quiz.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/04-exercises.html b/04-exercises.html
index 2b6b5c65..00d4f51b 100644
--- a/04-exercises.html
+++ b/04-exercises.html
@@ -354,7 +354,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>, in addition to
 the misspellings <code>Frence</code>, and <code>Franch</code>. It would
@@ -384,7 +384,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>,
 <code>Frence</code>, and <code>Franch</code> <em>only</em> at the end of
@@ -415,7 +415,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p><code>^France|^French</code> This would also find strings with other
 characters coming after <code>French</code>, such as
@@ -443,7 +443,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>In real life, you <em>should</em> only come across the case
 insensitive variations <code>colour</code>, <code>color</code>,
@@ -479,7 +479,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p><code>\bhead ?rest\b</code>. Note that although
 <code>\bhead\s?rest\b</code> does work, it would also match zero or one
@@ -508,7 +508,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p><code>0+[a-z]{4}\b</code></p>
 </div>
@@ -533,7 +533,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p><code>\d{4}</code>. Note this will match 4 digit strings only but
 will find them within longer strings of numbers.</p>
@@ -560,7 +560,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <p><code>\b\d{2}-\d{2}-\d{4}\b</code> In most real world situations, you
 are likely to want word bounding here (but it may depend on your
@@ -589,7 +589,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p><code>\d{2}-\d{2}-\d{2,4}$</code></p>
 </div>
@@ -616,7 +616,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <p><code>.* : .*, \d{4}</code> You will find that this matches any text
 you put before <code>British</code> or <code>Manchester</code>. In this
@@ -697,7 +697,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/04-exercises.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index 293bc715..fd1c3684 100644
--- a/404.html
+++ b/404.html
@@ -342,8 +342,8 @@ <h1>Page not found</h1>
   "url": "https://librarycarpentry.github.io/lc-data-intro/404.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/404.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index ece91475..e29f1c3e 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -367,7 +367,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/CODE_OF_CONDUCT.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 41bc0367..d243ffb9 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -415,7 +415,7 @@ <h1>Licenses</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/LICENSE.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index e51bc4e4..5aee419a 100644
--- a/aio.html
+++ b/aio.html
@@ -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" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <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" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <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+$</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -653,7 +653,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -685,7 +685,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?$</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" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <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" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <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" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <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" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <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" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <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" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <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" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <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" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <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" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <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" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <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" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <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" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
 <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" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
@@ -1161,7 +1161,7 @@ <h3 class="callout-title">Taking spaces into consideration</h3>
 <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" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The string ‘community-led’ matches the first search, but drops out of
 this result because the space does not match the character
@@ -1187,7 +1187,7 @@ <h3 class="callout-title">Taking any character into consideration</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" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>For instance, <code>\S+\b</code>. This would match one or more
 non-space characters followed by a word boundary.</p>
@@ -1212,7 +1212,7 @@ <h3 class="callout-title">Exploring effect of expressions matching different wor
 <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" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Because the string ‘communi’ is present in all of those words,
 including <code>communi</code>cation and <code>communi</code>ty. Because
@@ -1241,7 +1241,7 @@ <h3 class="callout-title">Taking capitalization into consideration</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" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>The pattern <code>communi</code> with either a capital <code>C</code>
 or lowercase <code>c</code> is present in the text 16 times.</p>
@@ -1266,7 +1266,7 @@ <h3 class="callout-title">Regex characters that indicate location</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" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>There is no matching string present at the start of a line. Look at
 the text and replace the string after the <code>^</code> with something
@@ -1291,7 +1291,7 @@ <h3 class="callout-title">Finding plurals</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
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 <pre><code>[Cc]omm\w+s\b</code></pre>
 <p><code>[Cc]</code> finds capital and lowercase <code>c</code></p>
@@ -1328,7 +1328,7 @@ <h3 class="callout-title">Start with what you know</h3>
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 </button>
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 <div class="accordion-body">
 <p>The ‘@’ character.</p>
 </div>
@@ -1355,7 +1355,7 @@ <h3 class="callout-title">Add to what you know</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
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 </button>
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 <div class="accordion-body">
 <pre><code>[\w.-]+@</code></pre>
 <p><code>\w</code> matches any word character (including digits and
@@ -1398,7 +1398,7 @@ <h3 class="callout-title">Finish the expression</h3>
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 <div class="accordion-body">
 <pre><code>[\w.-]+\.\w{2,3} OR [\w.-]+\.\w+</code></pre>
 <p>See the previous exercise for the explanation of the expression up to
@@ -1448,7 +1448,7 @@ <h3 class="callout-title">Start with what you know: find strings of digits</h3>
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 </button>
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 <div class="accordion-body">
 <pre><code>\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -1479,7 +1479,7 @@ <h3 class="callout-title">Match a string that includes an area code with a dash<
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 </button>
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 <div class="accordion-body">
 <pre><code>\d{3}-\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -1512,7 +1512,7 @@ <h3 class="callout-title">Match a string that includes an area code within paren
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution12" aria-expanded="false" aria-controls="collapseSolution12">
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 </button>
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 <div class="accordion-body">
 <pre><code>\(\d{3}\) ?\d{3}-\d{4}</code></pre>
 <p><code>\(</code> escape character with the parenthesis as
@@ -1547,7 +1547,7 @@ <h3 class="callout-title">Match a phone number containing a country code.</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution13" aria-expanded="false" aria-controls="collapseSolution13">
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 </button>
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 <div class="accordion-body">
 <pre><code>\+\d{1,3} ?\(\d{3}\)\s?\d{3}-\d{4}</code></pre>
 <p><code>\+</code> escape character with the plus sign as
@@ -1617,7 +1617,7 @@ <h3 class="callout-title">Extracting a substring in Google Sheets using regex</h
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution14" aria-expanded="false" aria-controls="collapseSolution14">
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 </button>
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 <div class="accordion-body">
 <p>This is one way to solve this challenge. You might have found others.
 Inside the cell you can use the below to extract the latitude and
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   Answer
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 </button>
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 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>, in addition to
 the misspellings <code>Frence</code>, and <code>Franch</code>. It would
@@ -2230,7 +2230,7 @@ <h4 class="accordion-header" id="headingSolution2">
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 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>,
 <code>Frence</code>, and <code>Franch</code> <em>only</em> at the end of
@@ -2261,7 +2261,7 @@ <h4 class="accordion-header" id="headingSolution3">
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 <p><code>^France|^French</code> This would also find strings with other
 characters coming after <code>French</code>, such as
@@ -2289,7 +2289,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
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 </button>
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 <div class="accordion-body">
 <p>In real life, you <em>should</em> only come across the case
 insensitive variations <code>colour</code>, <code>color</code>,
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 <div class="accordion-body">
 <p><code>\bhead ?rest\b</code>. Note that although
 <code>\bhead\s?rest\b</code> does work, it would also match zero or one
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 <p><code>0+[a-z]{4}\b</code></p>
 </div>
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   Answer
   </h4>
 </button>
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 <p><code>\d{4}</code>. Note this will match 4 digit strings only but
 will find them within longer strings of numbers.</p>
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 <div class="accordion-body">
 <p><code>\b\d{2}-\d{2}-\d{4}\b</code> In most real world situations, you
 are likely to want word bounding here (but it may depend on your
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 </button>
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 <div class="accordion-body">
 <p><code>\d{2}-\d{2}-\d{2,4}$</code></p>
 </div>
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   Answer
   </h4>
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 <div class="accordion-body">
 <p><code>.* : .*, \d{4}</code> You will find that this matches any text
 you put before <code>British</code> or <code>Manchester</code>. In this
@@ -2534,8 +2534,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://librarycarpentry.github.io/lc-data-intro/aio.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/aio.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
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diff --git a/discuss.html b/discuss.html
index 64baf472..03550791 100644
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   "identifier": "https://librarycarpentry.github.io/lc-data-intro/discuss.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-09-07",
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 }
 
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diff --git a/images.html b/images.html
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@@ -387,8 +387,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://librarycarpentry.github.io/lc-data-intro/images.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/images.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
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@@ -369,8 +369,8 @@ <h3 id="this-lesson-does-not-require-any-special-setup-">This lesson does not re
   "url": "https://librarycarpentry.github.io/lc-data-intro/index.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/index.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
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@@ -423,8 +423,8 @@ <h2 id="regular-expressions">Regular Expressions<a class="anchor" aria-label="an
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor-notes.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor-notes.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
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@@ -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">
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 <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">
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 <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+$</code></h3>
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 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -605,7 +605,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
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 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -637,7 +637,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?$</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">
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 </button>
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 <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">
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 </button>
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 <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">
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 </button>
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 <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">
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 </button>
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 <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">
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 </button>
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 <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">
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 </button>
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 <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">
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 </button>
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 <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">
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 </button>
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 <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" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <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" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <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" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <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" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
 <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" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
@@ -1102,7 +1102,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/01-regular-expressions.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-09-30",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/02-match-extract-strings.html b/instructor/02-match-extract-strings.html
index b9542794..5b317cc8 100644
--- a/instructor/02-match-extract-strings.html
+++ b/instructor/02-match-extract-strings.html
@@ -368,7 +368,7 @@ <h3 class="callout-title">Taking spaces into consideration</h3>
 <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" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The string ‘community-led’ matches the first search, but drops out of
 this result because the space does not match the character
@@ -394,7 +394,7 @@ <h3 class="callout-title">Taking any character into consideration</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" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>For instance, <code>\S+\b</code>. This would match one or more
 non-space characters followed by a word boundary.</p>
@@ -419,7 +419,7 @@ <h3 class="callout-title">Exploring effect of expressions matching different wor
 <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" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>Because the string ‘communi’ is present in all of those words,
 including <code>communi</code>cation and <code>communi</code>ty. Because
@@ -448,7 +448,7 @@ <h3 class="callout-title">Taking capitalization into consideration</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" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>The pattern <code>communi</code> with either a capital <code>C</code>
 or lowercase <code>c</code> is present in the text 16 times.</p>
@@ -473,7 +473,7 @@ <h3 class="callout-title">Regex characters that indicate location</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" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>There is no matching string present at the start of a line. Look at
 the text and replace the string after the <code>^</code> with something
@@ -498,7 +498,7 @@ <h3 class="callout-title">Finding plurals</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" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <pre><code>[Cc]omm\w+s\b</code></pre>
 <p><code>[Cc]</code> finds capital and lowercase <code>c</code></p>
@@ -533,7 +533,7 @@ <h3 class="callout-title">Start with what you know</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" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>The ‘@’ character.</p>
 </div>
@@ -560,7 +560,7 @@ <h3 class="callout-title">Add to what you know</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" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <pre><code>[\w.-]+@</code></pre>
 <p><code>\w</code> matches any word character (including digits and
@@ -603,7 +603,7 @@ <h3 class="callout-title">Finish the expression</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" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <pre><code>[\w.-]+\.\w{2,3} OR [\w.-]+\.\w+</code></pre>
 <p>See the previous exercise for the explanation of the expression up to
@@ -649,7 +649,7 @@ <h3 class="callout-title">Start with what you know: find strings of digits</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" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <pre><code>\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -680,7 +680,7 @@ <h3 class="callout-title">Match a string that includes an area code with a dash<
 <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"> Show me the solution </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <pre><code>\d{3}-\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -713,7 +713,7 @@ <h3 class="callout-title">Match a string that includes an area code within paren
 <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" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <pre><code>\(\d{3}\) ?\d{3}-\d{4}</code></pre>
 <p><code>\(</code> escape character with the parenthesis as
@@ -748,7 +748,7 @@ <h3 class="callout-title">Match a phone number containing a country code.</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" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <pre><code>\+\d{1,3} ?\(\d{3}\)\s?\d{3}-\d{4}</code></pre>
 <p><code>\+</code> escape character with the plus sign as
@@ -814,7 +814,7 @@ <h3 class="callout-title">Extracting a substring in Google Sheets using regex</h
 <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" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <p>This is one way to solve this challenge. You might have found others.
 Inside the cell you can use the below to extract the latitude and
@@ -910,7 +910,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/02-match-extract-strings.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-10-15",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/03-quiz.html b/instructor/03-quiz.html
index 5638897d..fd8008c3 100644
--- a/instructor/03-quiz.html
+++ b/instructor/03-quiz.html
@@ -781,7 +781,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/03-quiz.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/04-exercises.html b/instructor/04-exercises.html
index 48b3befd..2931a7e6 100644
--- a/instructor/04-exercises.html
+++ b/instructor/04-exercises.html
@@ -356,7 +356,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>, in addition to
 the misspellings <code>Frence</code>, and <code>Franch</code>. It would
@@ -386,7 +386,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>,
 <code>Frence</code>, and <code>Franch</code> <em>only</em> at the end of
@@ -417,7 +417,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p><code>^France|^French</code> This would also find strings with other
 characters coming after <code>French</code>, such as
@@ -445,7 +445,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>In real life, you <em>should</em> only come across the case
 insensitive variations <code>colour</code>, <code>color</code>,
@@ -481,7 +481,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p><code>\bhead ?rest\b</code>. Note that although
 <code>\bhead\s?rest\b</code> does work, it would also match zero or one
@@ -510,7 +510,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p><code>0+[a-z]{4}\b</code></p>
 </div>
@@ -535,7 +535,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p><code>\d{4}</code>. Note this will match 4 digit strings only but
 will find them within longer strings of numbers.</p>
@@ -562,7 +562,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <p><code>\b\d{2}-\d{2}-\d{4}\b</code> In most real world situations, you
 are likely to want word bounding here (but it may depend on your
@@ -591,7 +591,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p><code>\d{2}-\d{2}-\d{2,4}$</code></p>
 </div>
@@ -618,7 +618,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <p><code>.* : .*, \d{4}</code> You will find that this matches any text
 you put before <code>British</code> or <code>Manchester</code>. In this
@@ -699,7 +699,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/04-exercises.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index 22d0a634..b1b3a0e9 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -342,8 +342,8 @@ <h1>Page not found</h1>
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/404.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/404.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index d832dbcb..1a3a67c6 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -369,7 +369,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index ccb89281..08a7a4fe 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -417,7 +417,7 @@ <h1>Licenses</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/LICENSE.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index ac093147..f490f860 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -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" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <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">
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 </button>
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 <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+$</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -656,7 +656,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?\b</code></h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution4" aria-expanded="false" aria-controls="collapseSolution4">
   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -688,7 +688,7 @@ <h3 class="callout-title"><code>^[Oo]rgani.e\w?$</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" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <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" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <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" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <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" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <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" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
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 <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" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <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>
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 <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" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
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 <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>
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 <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" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
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 <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" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
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 <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" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
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 <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" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
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 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
@@ -1165,7 +1165,7 @@ <h3 class="callout-title">Taking spaces into consideration</h3>
 <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" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The string ‘community-led’ matches the first search, but drops out of
 this result because the space does not match the character
@@ -1191,7 +1191,7 @@ <h3 class="callout-title">Taking any character into consideration</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" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
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 <div class="accordion-body">
 <p>For instance, <code>\S+\b</code>. This would match one or more
 non-space characters followed by a word boundary.</p>
@@ -1216,7 +1216,7 @@ <h3 class="callout-title">Exploring effect of expressions matching different wor
 <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" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
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 <div class="accordion-body">
 <p>Because the string ‘communi’ is present in all of those words,
 including <code>communi</code>cation and <code>communi</code>ty. Because
@@ -1245,7 +1245,7 @@ <h3 class="callout-title">Taking capitalization into consideration</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" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>The pattern <code>communi</code> with either a capital <code>C</code>
 or lowercase <code>c</code> is present in the text 16 times.</p>
@@ -1270,7 +1270,7 @@ <h3 class="callout-title">Regex characters that indicate location</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" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
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 <div class="accordion-body">
 <p>There is no matching string present at the start of a line. Look at
 the text and replace the string after the <code>^</code> with something
@@ -1295,7 +1295,7 @@ <h3 class="callout-title">Finding plurals</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" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
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 <pre><code>[Cc]omm\w+s\b</code></pre>
 <p><code>[Cc]</code> finds capital and lowercase <code>c</code></p>
@@ -1332,7 +1332,7 @@ <h3 class="callout-title">Start with what you know</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" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
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 <div class="accordion-body">
 <p>The ‘@’ character.</p>
 </div>
@@ -1359,7 +1359,7 @@ <h3 class="callout-title">Add to what you know</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" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
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 <pre><code>[\w.-]+@</code></pre>
 <p><code>\w</code> matches any word character (including digits and
@@ -1402,7 +1402,7 @@ <h3 class="callout-title">Finish the expression</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" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
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 <pre><code>[\w.-]+\.\w{2,3} OR [\w.-]+\.\w+</code></pre>
 <p>See the previous exercise for the explanation of the expression up to
@@ -1452,7 +1452,7 @@ <h3 class="callout-title">Start with what you know: find strings of digits</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" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
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 <pre><code>\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -1483,7 +1483,7 @@ <h3 class="callout-title">Match a string that includes an area code with a dash<
 <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"> Show me the solution </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
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 <div class="accordion-body">
 <pre><code>\d{3}-\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -1516,7 +1516,7 @@ <h3 class="callout-title">Match a string that includes an area code within paren
 <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" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
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 <div class="accordion-body">
 <pre><code>\(\d{3}\) ?\d{3}-\d{4}</code></pre>
 <p><code>\(</code> escape character with the parenthesis as
@@ -1551,7 +1551,7 @@ <h3 class="callout-title">Match a phone number containing a country code.</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" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
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 <div class="accordion-body">
 <pre><code>\+\d{1,3} ?\(\d{3}\)\s?\d{3}-\d{4}</code></pre>
 <p><code>\+</code> escape character with the plus sign as
@@ -1621,7 +1621,7 @@ <h3 class="callout-title">Extracting a substring in Google Sheets using regex</h
 <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" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <p>This is one way to solve this challenge. You might have found others.
 Inside the cell you can use the below to extract the latitude and
@@ -2206,7 +2206,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
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 <p>This matches <code>France</code>, <code>French</code>, in addition to
 the misspellings <code>Frence</code>, and <code>Franch</code>. It would
@@ -2236,7 +2236,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
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 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>,
 <code>Frence</code>, and <code>Franch</code> <em>only</em> at the end of
@@ -2267,7 +2267,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
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 <p><code>^France|^French</code> This would also find strings with other
 characters coming after <code>French</code>, such as
@@ -2295,7 +2295,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
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 <div class="accordion-body">
 <p>In real life, you <em>should</em> only come across the case
 insensitive variations <code>colour</code>, <code>color</code>,
@@ -2331,7 +2331,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p><code>\bhead ?rest\b</code>. Note that although
 <code>\bhead\s?rest\b</code> does work, it would also match zero or one
@@ -2360,7 +2360,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p><code>0+[a-z]{4}\b</code></p>
 </div>
@@ -2385,7 +2385,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p><code>\d{4}</code>. Note this will match 4 digit strings only but
 will find them within longer strings of numbers.</p>
@@ -2412,7 +2412,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <p><code>\b\d{2}-\d{2}-\d{4}\b</code> In most real world situations, you
 are likely to want word bounding here (but it may depend on your
@@ -2441,7 +2441,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p><code>\d{2}-\d{2}-\d{2,4}$</code></p>
 </div>
@@ -2468,7 +2468,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <p><code>.* : .*, \d{4}</code> You will find that this matches any text
 you put before <code>British</code> or <code>Manchester</code>. In this
@@ -2540,8 +2540,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/aio.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/aio.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/discuss.html b/instructor/discuss.html
index 5f364403..55bd7ed1 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -369,7 +369,7 @@ <h1>Discussion</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/discuss.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-09-07",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/images.html b/instructor/images.html
index 098ef555..abf99794 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -389,8 +389,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/images.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/images.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index 3f509a66..eceebe7b 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -418,8 +418,8 @@ <h3 id="this-lesson-does-not-require-any-special-setup-">This lesson does not re
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/index.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/index.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index bf0001e0..5e2bca82 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -429,8 +429,8 @@ <h2 id="regular-expressions">Regular Expressions<a class="anchor" aria-label="an
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/instructor-notes.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/instructor-notes.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index eb8125d3..7ac6a23b 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -405,8 +405,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/key-points.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/key-points.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index 0c39a0fc..c216a415 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -318,8 +318,8 @@ <h1>Learner Profiles</h1>
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/profiles.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/profiles.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index 1ac475ff..78e42c6b 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -403,7 +403,7 @@ <h1>Regular Expression Cheat Sheet</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/reference.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index d4dd1327..98089c14 100644
--- a/key-points.html
+++ b/key-points.html
@@ -403,8 +403,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://librarycarpentry.github.io/lc-data-intro/key-points.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/key-points.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/pkgdown.yml b/pkgdown.yml
index 4ddb36bb..34cb59f6 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,4 +2,4 @@ pandoc: 3.1.11
 pkgdown: 2.1.1
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-12-17T00:18Z
+last_built: 2024-12-24T00:16Z
diff --git a/profiles.html b/profiles.html
index fd7ab348..ebe164c1 100644
--- a/profiles.html
+++ b/profiles.html
@@ -318,8 +318,8 @@ <h1>Learner Profiles</h1>
   "url": "https://librarycarpentry.github.io/lc-data-intro/profiles.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/profiles.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-12-17",
-  "datePublished": "2024-12-17"
+  "dateModified": "2024-12-24",
+  "datePublished": "2024-12-24"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index 3eb84a01..02115d3f 100644
--- a/reference.html
+++ b/reference.html
@@ -401,7 +401,7 @@ <h1>Regular Expression Cheat Sheet</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/reference.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2024-12-17"
+  "datePublished": "2024-12-24"
 }
 
   </script><script>