Fix: wildcard_permission example includes permission. prefix

In the `permission.php` template file, the example in the comments for how to override the `WildcardPermission` class incorrectly uses `permission.wildcard_permission` as the key instead of just `wildcard_permission`.

Author: jerrens

config/permission.php

@@ -172,7 +172,7 @@
      * The class to use for interpreting wildcard permissions.
      * If you need to modify delimiters, override the class and specify its name here.
      */
-    // 'permission.wildcard_permission' => Spatie\Permission\WildcardPermission::class,
+    // 'wildcard_permission' => Spatie\Permission\WildcardPermission::class,
 
     /* Cache-specific settings */