Add update of zh_CN to changelog

changelog.html

@@ -48,6 +48,7 @@ <h1>
 <ul>
     <li>Requires Openfire 5.0.0</li>
     <li>Note: Chat rooms can, in certain circumstances, be destroyed, and then be recreated using the same name. For data recorded by previous versions of this plugin, the plugin will associate all room history with the latest 'reincarnation' of a room. Starting with this version, new data will be associated to the correct 'incarnation' of the room.</li>
+    <li>Updated Chinese (zh_CN) translation</li>
     <li>[<a href='https://github.com/igniterealtime/openfire-monitoring-plugin/issues/409'>Issue #409</a>] - Building Lucene index should not load all messages in memory</li>
     <li>[<a href='https://github.com/igniterealtime/openfire-monitoring-plugin/issues/401'>Issue #401</a>] - Fixes: Update Jersey from 2.35 to 2.45</li>
     <li>[<a href='https://github.com/igniterealtime/openfire-monitoring-plugin/issues/398'>Issue #398</a>] - Fixes: Missing translation for system property</li>