Update CHANGELOG

CHANGELOG

@@ -74,6 +74,7 @@ v 8.7.0 (unreleased)
   - Selected diff rows highlight
   - Fix emoji categories in the emoji picker
   - Add encrypted credentials for imported projects and migrate old ones
+  - Author and participants are displayed first on users autocompletion
 
 v 8.6.6
   - Expire the exists cache before deletion to ensure project dir actually exists (Stan Hu). !3413
@@ -81,7 +82,6 @@ v 8.6.6
   - Fix revoking of authorized OAuth applications (Connor Shea). !3690
   - Fix error on language detection when repository has no HEAD (e.g., master branch). !3654 (Jeroen Bobbeldijk)
   - Project switcher uses new dropdown styling
-  - Author and participants are displayed first on users autocompletion
 
 v 8.6.5
   - Fix importing from GitHub Enterprise. !3529