Approval.

backend/en/data_history.json

@@ -55,6 +55,9 @@
         "reception_publication": "Reception",
         "visibility (sm)": "Visibility (social media)",
         "link_persinst": "Linked an actor",
-        "unlink_persinst": "Remove link to an actor"
+        "unlink_persinst": "Remove link to an actor",
+        "chapter_updated": "Chapter information updated",
+        "chapter_added": "Chapter added",
+        "chapter_deleted": "Removed a chapter"
     }
 }