Adjust changelog

Author: samdark

resources/META-INF/plugin.xml

@@ -11,6 +11,7 @@
   <change-notes><![CDATA[
     <b>1.6</b>
     <ul>
+      <li>Fix inconsistencies in Java and Kotlin color schemas.</li>
       <li>Defined color scheme in the plugin.xml.</li>
     </ul>