Documentation: Update changelog for 1.11.18

Author: ywarnier

documentation/changelog.html

@@ -113,7 +113,7 @@ <h1>Chamilo&nbsp;Changelog</h1>
     <div class="version" aria-label="1.11.18">
         <a id="1.11.18"></a>
 
-        <h1>Chamilo 1.11.18 - Grünheide, 19/01/2023</h1>
+        <h1>Chamilo 1.11.18 - Grünheide, 20/01/2023</h1>
         <h3>Release notes - summary</h3>
         <p>Chamilo 1.11.18 is a minor security and bug fix release on top of 1.11.16.</p>
         <h3>Release name</h3>
@@ -314,6 +314,7 @@ <h4>For developers and sysadmins</h4>
 <h3>Improvements (minor features) and debug</h3>
         In reverse chronological order...
         <ul aria-live="off">
+            <li>[2023-01-20] (<a href="https://github.com/chamilo/chamilo-lms/commit/f3fc1825f89110a93949cc55d511e382bb78439d">f3fc1825</a> Exercise: Aiken: Remove comma character not accepted by PHP 7.2</li>
             <li>[2023-01-19] (<a href="https://github.com/chamilo/chamilo-lms/commit/4bf9b7bde1ec32e5a7add4c0e7291b3bf2bef0dd">4bf9b7bd</a> - <a href="https://task.beeznest.com/issues/20488">BT#20488</a>) Plagiarism: Compilatio: enable hash to be 40 or 32 caracters because Compilatio changed</li>
             <li>[2023-01-19] (<a href="https://github.com/chamilo/chamilo-lms/commit/1154647d87c6a6d88fae6d5c55cfe534f5c2b7ef">1154647d</a> - <a href="https://task.beeznest.com/issues/20496">BT#20496</a>) Plugin: Test2PDF: Add Fill in the blank type support</li>
             <li>[2023-01-19] (<a href="https://github.com/chamilo/chamilo-lms/commit/362cf5a080ad2b0170d664a2933997ae3249cf7d">362cf5a0</a> - <a href="https://github.com/chamilo/chamilo-lms/issues/4537">GH#4537</a>) Plugin: Zoom: Update configuration instructions</li>