Update README.md

Author: magefan

README.md

@@ -137,3 +137,6 @@ The code is licensed under [EULA](https://magefan.com/end-user-license-agreement
 
   ### Magento 2 Point of Sale
   * [Magento 2 POS System](https://magefan.com/magento-pos-system)
+  
+  ### Shopware Extensions
+  * [Shopware WebP Extension](https://magefan.com/shopware/extensions/webp)