Update README.md

Author: magefan

README.md

@@ -114,6 +114,7 @@ The code is licensed under [EULA](https://magefan.com/end-user-license-agreement
   * [Magento 2 Facebook Pixel Extension](https://magefan.com/magento-2-facebook-pixel-extension)
   * [Magento 2 Price History](https://magefan.com/magento-2-price-history)
   * [Magento 2 Google Customer Reviews](https://magefan.com/magento-2-google-customer-reviews)
+  * [Magento 2 Email Attachments](https://magefan.com/magento-2-email-attachments)
 
 ### [Magento 2 Blog Extensions](https://magefan.com/magento-2-extensions/blog-extensions)