Update README.md

Author: magefan

README.md

@@ -166,3 +166,6 @@ The code is licensed under [Open Software License ("OSL") v. 3.0](http://opensou
 
   ### Shopware Extensions
   * [Shopware WebP Extension](https://magefan.com/shopware/extensions/webp)
+   
+  ### Shopify Apps
+  * [Shopify Login As Customer](https://apps.shopify.com/login-as-customer)