Update CHANGELOG.md for 9.5.8

[ci skip]

CHANGELOG.md

@@ -195,6 +195,10 @@ entry.
 - Added type to CHANGELOG entries. (Jacopo Beschi @jacopo-beschi)
 - [BUGIFX] Improves subgroup creation permissions. !13418
+## 9.5.8 (2017-10-04)
+
+- [FIXED] Fixed fork button being disabled for users who can fork to a group.
+
 ## 9.5.7 (2017-10-03)
 - Fix gitlab rake:import:repos task.

changelogs/unreleased/fork-btn-enabled-user-groups.yml

----
-title: Fixed fork button being disabled for users who can fork to a group
-merge_request:
-author:
-type: fixed