update docs

CHANGES.md

@@ -8,6 +8,8 @@ CHANGES
     * dockerfile, go, gradle, json, less, scss, typescript, yaml
 * Fix: Couldn't connect to PLANTUML_URI
     * Introduced by 2.4.0
+* Fix: Couldn't render UML which includes CJK
+    * Introduced by 2.4.0
 * Support: Upgrade libs
     * axios