Update README.md

Author: magefan

README.md

@@ -163,3 +163,6 @@ The code is licensed under [Open Software License ("OSL") v. 3.0](http://opensou
 
   ### 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)