Approval.

backend/hu/data_history.json

@@ -64,6 +64,7 @@
         "source_link_updated": "Link to a source has been updated",
         "institution": "Int\u00e9zm\u00e9ny",
         "flagged_for_deletion": "Flagged for deletion",
-        "link_collection": "Link collection"
+        "link_collection": "Link collection",
+        "link_museum": "Link museum"
     }
 }