Update CHANGELOG

CHANGELOG

@@ -6,6 +6,7 @@ v 8.7.0 (unreleased)
 v 8.6.1 (unreleased)
   - Do not allow to move issue if it has not been persisted
   - Fix an issue causing the Dashboard/Milestones page to be blank
+  - Fix build dependencies, when the dependency is a string
 
 v 8.6.0
   - Add ability to move issue to another project
@@ -16,7 +17,6 @@ v 8.6.0
   - Fix diff image view modes (2-up, swipe, onion skin) not working (Stan Hu)
   - Support Golang subpackage fetching (Stan Hu)
   - Bump Capybara gem to 2.6.2 (Stan Hu)
-  - Fix build dependencies, when the dependency is a string
   - New branch button appears on issues where applicable
   - Contributions to forked projects are included in calendar
   - Improve the formatting for the user page bio (Connor Shea)