Update request_any_route.md

Author: cursedcoder

doc/request_any_route.md

@@ -5,8 +5,9 @@ The method you need does not exist yet? You can access any GitHub route by using
 For example:
 
 ```php
-$client = new Github\Client();
-$repo   = $client->getHttpClient()->get('repos/KnpLabs/php-github-api');
+$client   = new Github\Client();
+$response = $client->getHttpClient()->get('repos/KnpLabs/php-github-api');
+$repo     = Github\HttpClient\Message\ResponseMediator::getContent($response);
 ```
 
 Returns an array describing the "php-github-api" repository.