Closing bracket missing in documentation

The code sample was missing a closing bracket, which could lead to confusing errors and affecting the user experience.

No issue was created for this

Author: DragonBe

docs/book/v3/getting-started/quick-start.md

@@ -564,7 +564,7 @@ $target = htmlspecialchars($target, ENT_HTML5, 'UTF-8');
 return new HtmlResponse($this->renderer->render(
     'app::hello',
     ['target' => $target]
-);
+));
 ```
 
 > #### Templateless handler