Updated Changelog

CHANGELOG.md

 
 #### Added
 
-* Handle Drop in Callable Reorderable Lists
+* Handle Drop in Callable Reorderable Lists : Dropped Callables components are added to the list. Dropped Game Objects will prompt a menu to select which callable to add.
+
+#### Fixed
+
+* Fixed Callable Reorderable List Undo.
 
 ## 2020.2.5