remove invalid trailing comma in JSON

35.md

@@ -34,7 +34,7 @@ This NIP proposes an optional additional key like this:
   },
   "relays": {
     "b0635d6a9851d3aed0cd6c495b282167acf761729078d975fc341b22650b07b9": [ "wss://relay.example.com", "wss://relay2.example.com" ]
-  },
+  }
 }
 ````