Update CHANGELOG.md for 8.14.6

[ci skip]

CHANGELOG.md

@@ -265,6 +265,11 @@ entry.
 - Whitelist next project names: help, ci, admin, search. !8227
 - Adds back CSS for progress-bars. !8237
 
+## 8.14.6 (2017-01-10)
+
+- Update the gitlab-markup gem to the version 1.5.1. !8509
+- Updated Turbolinks to mitigate potential XSS attacks.
+
 ## 8.14.5 (2016-12-14)
 
 - Moved Leave Project and Leave Group buttons to access_request_buttons from the settings dropdown. !7600