Documentation: Fix missing release name in changelog

documentation/changelog.html

@@ -117,7 +117,7 @@
         <h3>Release notes - summary</h3>
         <p>Chamilo 1.11.20 is a minor bug fix release on top of 1.11.18.</p>
         <h3>Release name</h3>
-        <p><a href="https://en.wikipedia.org/wiki/Portsmouth"></a> is almost a legendary city. With historical records
+        <p><a href="https://en.wikipedia.org/wiki/Portsmouth">Portsmouth (UK)</a> is almost a legendary city. With historical records
         going back almost 2000 years and an inspiring current state (most densely populated city in the United Kingdom,
         historical and military monuments all over, officially an island, etc), and a history of "almost getting destroyed"
         several times, yet always recovering splendidly, Portsmouth shares a few similarities with the 1.11 branch of