Approval.

backend/hsb/data_history.json

@@ -63,6 +63,7 @@
         "link_source": "Linked a source",
         "source_link_updated": "Link to a source has been updated",
         "institution": "institution",
-        "flagged_for_deletion": "Flagged for deletion"
+        "flagged_for_deletion": "Flagged for deletion",
+        "link_collection": "Link collection"
     }
 }