Change "url" to "URL".

Shout out to @dereuromark :)

src/Auth/Storage/StorageInterface.php

@@ -43,10 +43,10 @@ public function write(array $user);
     public function delete();
 
     /**
-     * Get/set redirect url.
+     * Get/set redirect URL.
      *
-     * @param mixed $url Redirect url. If `null` returns current url. If `false`
-     *   deletes currently set url.
+     * @param mixed $url Redirect URL. If `null` returns current URL. If `false`
+     *   deletes currently set URL.
      * @return mixed
      */
     public function redirectUrl($url = null);

src/Controller/Component/AuthComponent.php

@@ -219,7 +219,7 @@ class AuthComponent extends Component
 
     /**
      * The instance of the Authorize provider that was used to grant
-     * access to the current user to the url they are requesting.
+     * access to the current user to the URL they are requesting.
      *
      * @var \Cake\Auth\BaseAuthorize
      */