Minor fixes

Author: simpleadm

6. Developing with Adminhtml/4. Utilize ACL to set menu items and permissions.md

@@ -29,7 +29,7 @@ menu.xml - `urn:magento:module:Magento_Backend:/etc/menu.xsd` - flat structure
 - System > Permissions > All Users to view and create new users and associate to a role.  There are two tabs 1 is user info the other is User Role where you define the Role for this user.  You can only select 1 role per user.
 
 *How can you do that programmatically?*
-- You can leverage \Magento\Authorization\Model\Acl\AclRetriever.  That as a few methods that will help
+- You can leverage [\Magento\Authorization\Model\Acl\AclRetriever](https://github.com/magento/magento2/blob/2.2-develop/app/code/Magento/Authorization/Model/Acl/AclRetriever.php).  That as a few methods that will help
 
 ```php
     /**