Add CHANGELOG

Author: ayufan

CHANGELOG

@@ -81,6 +81,7 @@ v 8.10.0 (unreleased)
   - More descriptive message for git hooks and file locks
   - Handle custom Git hook result in GitLab UI
   - Allow '?', or '&' for label names
+  - Support redirected blobs for Container Registry integration
   - Fix importer for GitHub Pull Requests when a branch was reused across Pull Requests
   - Add date when user joined the team on the member page
   - Fix 404 redirect after validation fails importing a GitLab project