Approval in backend

backend/de/data_history.json

@@ -89,6 +89,8 @@
         "visibility (addendum)": "Sichtbarkeit (Spezifisch f\u00fcr Feld)",
         "museum": "Verkn\u00fcpfung zu Museum",
         "publication": "Verkn\u00fcpfung",
-        "document": "Dokument"
+        "document": "Dokument",
+        "link_place": "Ortsverkn\u00fcpfung",
+        "link_time": "Zeit verkn\u00fcpft"
     }
 }