Prep changelog

Author: richvdh

CHANGELOG.md

@@ -1,3 +1,8 @@
+unreleased
+==========
+ * Fix deviceverifybuttons
+   [5fd7410](https://github.com/matrix-org/matrix-react-sdk/commit/827b5a6811ac6b9d1f9a3002a94f9f6ac3f1d49c)
+
 Changes in [0.8.6-rc.2](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v0.8.6-rc.2) (2017-02-03)
 =============================================================================================================
 [Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.8.6-rc.1...v0.8.6-rc.2)