extend/views fix: changed ";" to "," (#486)

Author: Ser5

docs/extend/views.md

@@ -62,6 +62,6 @@ use Illuminate\Contracts\View\Factory;
 
 return [
     (new Extend\View)
-        ->extendNamespace('acme.hello-world', __DIR__.'/override_views');
+        ->extendNamespace('acme.hello-world', __DIR__.'/override_views'),
 ];
 ```