Update get-involved.php (#1009)

* Update get-involved.php

Changed http to https link as the pages they link to does not redirect to their own https versions automatically

* Update get-involved.php

Fixed error

get-involved.php

@@ -26,10 +26,10 @@
 <h3 class="content-title" id="ways-to-contribute">Four Best Ways to Contribute</h3>
 
  <ol class="content-box listed">
-  <li>Running test suites in <a href="http://qa.php.net/">RC</a>
-      and <a href="http://php.net/releases">release</a> distributions of PHP</li>
+  <li>Running test suites in <a href="https://qa.php.net/">RC</a>
+      and <a href="https://php.net/releases">release</a> distributions of PHP</li>
   <li>Help finding and diagnosing failed tests, see
-      the <a href="http://qa.php.net/write-test.php">phpt documentation</a></li>
+      the <a href="https://qa.php.net/write-test.php">phpt documentation</a></li>
   <li>Filing and resolving bug reports
       on <a href="https://github.com/php/php-src/issues/">GitHub Issues</a>.</li>
   <li>Help maintain and or translate documentation files