update changelog

CHANGELOG.md

@@ -13,6 +13,9 @@ FEATURES:
       to filter to only nodes with passing results. [GH-57]
   * The KV endpoint suports listing keys with the `?keys` query parameter,
       and limited up to a seperator using `?seperator=`.
+  * Improved the URL formatting for the key/value editor in the Web UI.
+  Importantly, the editor now allows editing keys with dashes in the
+  name. [GH-119]
 
 IMPROVEMENTS: