Update CHANGELOG

CHANGELOG

 Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.2.0 (unreleased)
-  - Ensure MySQL CI limits DB migrations occur after the fields have been created (Stan Hu)
   - Improved performance of replacing references in comments
-  - Fix duplicate repositories in GitHub import page (Stan Hu)
-  - Redirect to a default path if HTTP_REFERER is not set (Stan Hu)
   - Show last project commit to default branch on project home page
   - Highlight comment based on anchor in URL
   - Adds ability to remove the forked relationship from project settings screen. (Han Loong Liauw)
@@ -12,7 +9,10 @@ v 8.2.0 (unreleased)
   - Allow users to select the Files view as default project view (Cristian Bica)
   - Show "Empty Repository Page" for repository without branches (Artem V. Navrotskiy)
 
-v 8.1.0 (unreleased)
+v 8.1.0
+  - Ensure MySQL CI limits DB migrations occur after the fields have been created (Stan Hu)
+  - Fix duplicate repositories in GitHub import page (Stan Hu)
+  - Redirect to a default path if HTTP_REFERER is not set (Stan Hu)
   - Send an email to admin email when a user is reported for spam (Jonathan Rochkind)
   - Show notifications button when user is member of group rather than project (Grzegorz Bizon)
   - Fix bug preventing mentioned issued from being closed when MR is merged using fast-forward merge.
@@ -87,11 +87,11 @@ v 8.1.0 (unreleased)
   - Let gitlab-git-http-server generate and serve 'git archive' downloads
   - Optimize query when filtering on issuables (Zeger-Jan van de Weg)
   - Fix padding of outdated discussion item.
+  - Animate the logo on hover
 
 v 8.0.5
   - Correct lookup-by-email for LDAP logins
   - Fix loading spinner sometimes not being hidden on Merge Request tab switches
-  - Animate the logo on hover
 
 v 8.0.4
   - Fix Message-ID header to be RFC 2111-compliant to prevent e-mails being dropped (Stan Hu)