fix another example #291

docs/events/form-events.md

@@ -53,8 +53,7 @@ Event::on(RecoveryController::class, FormEvent::EVENT_BEFORE_REQUEST, function (
     $form = $event->getForm();
     
     // ... your logic here
-}
-
+});
 ```
 
 Now, include `events.php` file to your entry script (i.e. `index.php`). The following is taken from the Yii 2 Advanced