QUICKSTART: bugfix

docs/QUICKSTART.md

@@ -135,7 +135,7 @@ Our `config.json` should now look like this:
         "name": "cache"
     }],
     "loggedComponents": ["service-worker", "fetch", "cache"],
-    defaultPluginTimeout: 1000
+    "defaultPluginTimeout": 1000
 }
 ```