chore: doc updated

Author: devansh-webkul

docs/master/api/rest-api.md

@@ -10,7 +10,9 @@ Bagisto REST API is a medium to use the features of the core Bagisto System. By
 
 Welcome to our API demo! Dive into the interactive showcase of our API functionalities to get a hands-on experience of how our platform works. Click the Link below to access the demo:
 
-[Access REST API Demo](https://demo.bagisto.com/bagisto-api-demo/)
+[Access Admin API](https://demo.bagisto.com/bagisto-api-demo-common/api/admin/documentation#/) – View and interact with Admin API endpoints.
+
+[Access Shop API](https://demo.bagisto.com/bagisto-api-demo-common/api/shop/documentation#/) – Explore the Shop API functionality.
 
 #### Installation of REST API