Update README.md

Author: jissereitsma

README.md

@@ -16,6 +16,11 @@ using major version 2 in the past, edit your `composer.json` file manually to us
 [![ExtDN Static Tests](https://github.com/yireo/Yireo_GoogleTagManager2/actions/workflows/extdn-phpstan.yml/badge.svg)](https://github.com/yireo/Yireo_GoogleTagManager2/actions/workflows/extdn-phpstan.yml)
 [![ExtDN Integration Tests](https://github.com/yireo/Yireo_GoogleTagManager2/actions/workflows/extdn-integration-tests.yml/badge.svg)](https://github.com/yireo/Yireo_GoogleTagManager2/actions/workflows/extdn-integration-tests.yml)
 
+## Need help?
+We offer courses on various topics of Magento 2, including the usage and configuration of Google Tag Manager and Google Analytics. See the following course page for more details:
+
+[yireo.com/training/magento2-gtm-advanced](https://www.yireo.com/training/magento2-gtm-advanced)
+
 ## Requirements
 Supported versions: Magento 2.3.7 or higher and 2.4.1 or higher (partially because of the requirement for PHP 7.4 or PHP 8.1).