message: Update Auth doc
diff: @@ -212,7 +212,7 @@ auth.attachPermissionsForAuthUsers(stack, [api, "s3"]);
  ```js {3}
  const auth = new Auth(stack, "Auth");
  -auth.attachPermissionsForUnauthUsers([api, "s3"]);
  +auth.attachPermissionsForUnauthUsers(stack, [api, "s3"]);
  ```
  ### Advanced examples
  