Update README.md

Author: VariableVic

README.md

@@ -99,6 +99,7 @@ Your site is now running at http://localhost:8000!
 Edit `/pages/index.tsx` to see your site update in real-time!
 
 # Product Module
+> The Product Module is currently in beta. You can learn more about it [here](https://docs.medusajs.com/modules/products/serverless-module). In addition, the product module in the Next.js storefront can't be used without the Medusa backend at the moment.
 
 This starter has full support for our new serverless [Product Module](https://docs.medusajs.com/modules/products/serverless-module) for retrieving and manipulating product data directly from a serverless function. This keeps your product logic close to the frontend, making it easy to customize or extend Medusa's core functionality from within your Next.js project.