docs: add customize stripe integration in next.js guide (#10583)

www/apps/resources/app/nextjs-starter/page.mdx

@@ -134,6 +134,12 @@ Where `<YOUR_PUBLISHABLE_KEY>` is your Stripe publishable key. You can retrieve
 
 Then, restart the Next.js Starter storefront. You can now use Stripe during checkout.
 
+<Note title="Tip">
+
+Refer to [this guide](./guides/customize-stripe/page.mdx) to learn how to customize the Stripe integration and components.
+
+</Note>
+
 ---
 
 ## Change Medusa Application URL