Updated changelog

Author: estruyf

CHANGELOG.JSON

@@ -4,7 +4,9 @@
       "version": "1.13.2",
       "changes": {
         "new": [],
-        "enhancements": [],
+        "enhancements": [
+          "Improvements to the `Lithuanian` localization [#285](https://github.com/SharePoint/sp-dev-fx-controls-react/pull/285)"
+        ],
         "fixes": [
           "`DateTimePicker`: IE11 layout issue [#301](https://github.com/SharePoint/sp-dev-fx-controls-react/pull/301)",
           "`ListItemAttachments`: Render issue fixed + improvements to the attachment API calls [#282](https://github.com/SharePoint/sp-dev-fx-controls-react/pull/282)"