fix comment

src/server.js

@@ -44,9 +44,7 @@ async function initializeExpressSync() {
     const json = express.json({ strict: true, limit: QUERY_LIMIT }); // application/json
 
     app.set('json spaces', 2); // pretty json
-
-    // for rate limiting
-    app.enable('trust proxy');
+    app.enable('trust proxy'); // trust the X-Forwarded-* headers
 
     const router = new express.Router();
     router.del = router.delete; // amend router.del for readability further on