More entries to CHANGELOG

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

CHANGELOG

@@ -2,6 +2,11 @@ v 7.3.0
   - Always set the 'origin' remote in satellite actions
   - Write authorized_keys in tmp/ during tests
   - Expire Rack sessions after 1 week
+  - Cleaner signin/signup pages
+  - Improved comments UI
+  - Better search with filtering, pagination etc
+  - Added a checkbox to toggle line wrapping in diff (Yuriy Glukhov)
+  - Prevent project stars duplication when fork project
 v 7.2.0
   - Explore page