Updated CHANGES.md

Author: Build Agent 1

CHANGES.md

@@ -1,3 +1,6 @@
+### [6.5.1 Docs](http://building.usebutton.com/button-android/history/6.5.1/reference/com/usebutton/sdk/Button.html)
+* Minor Button Actions improvements
+
 ### [6.5.0 Docs](http://building.usebutton.com/button-android/history/6.5.0/reference/com/usebutton/sdk/Button.html)
 * Our automatic Instant and Predictable Rewards product can now be customized with unique copy, color, and images. 
 * Introducing a new and flexible way to prompt a user to install the app via an Install Card.