Update CHANGELOG

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CHANGELOG

 Please view this file on the master branch, on stable branches it's out of date.
 
-v 8.6.0 (unreleased)
+v 8.7.0 (unreleased)
+  - Make HTTP(s) label consistent on clone bar (Stan Hu)
+
+v 8.6.1 (unreleased)
+
+
+v 8.6.0
   - Add ability to move issue to another project
   - Prevent tokens in the import URL to be showed by the UI
   - Fix bug where wrong commit ID was being used in a merge request diff to show old image (Stan Hu)
-  - Make HTTP(s) label consistent on clone bar (Stan Hu)
   - Add confidential issues
   - Bump gitlab_git to 9.0.3 (Stan Hu)
   - Fix diff image view modes (2-up, swipe, onion skin) not working (Stan Hu)
@@ -19,9 +24,11 @@ v 8.6.0 (unreleased)
     setup. A password can be provided during setup (see installation docs), or
     GitLab will ask the user to create a new one upon first visit.
   - Fix issue when pushing to projects ending in .wiki
+  - Properly display YAML front matter in Markdown
   - Add support for wiki with UTF-8 page names (Hiroyuki Sato)
   - Fix wiki search results point to raw source (Hiroyuki Sato)
   - Don't load all of GitLab in mail_room
+  - Add information about `image` and `services` field at `job` level in the `.gitlab-ci.yml` documentation (Pat Turner)
   - HTTP error pages work independently from location and config (Artem Sidorenko)
   - Update `omniauth-saml` to 1.5.0 to allow for custom response attributes to be set
   - Memoize @group in Admin::GroupsController (Yatish Mehta)