Prepare changelog for v2.6.0

Author: RiotRobot

CHANGELOG.md

@@ -1,3 +1,13 @@
+Changes in [2.6.0](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v2.6.0) (2020-05-19)
+===================================================================================================
+[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v2.6.0-rc.1...v2.6.0)
+
+ * Upgrade to JS SDK 6.1.0
+ * Revert "ImageView make clicking off it easier"
+   [\#4602](https://github.com/matrix-org/matrix-react-sdk/pull/4602)
+ * Remove debugging that causes email addresses to load forever (to release)
+   [\#4598](https://github.com/matrix-org/matrix-react-sdk/pull/4598)
+
 Changes in [2.6.0-rc.1](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v2.6.0-rc.1) (2020-05-14)
 =============================================================================================================
 [Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v2.5.0...v2.6.0-rc.1)