Typo in namespace casing in PHP sample

[rkaiser0324]

In https://github.com/TwilioDevEd/api-snippets/blob/master/rest/messages/generate-twiml-sms/generate-twiml-sms.5.x.php, it says

<?php
// Get the PHP helper library from https://twilio.com/docs/libraries/php

require_once 'vendor/autoload.php'; // Loads the library
use Twilio\Twiml\MessagingResponse;

The last line should be:

use Twilio\TwiML\MessagingResponse;

The casing is wrong.