docs: added saved payment methods with Stripe tutorial (#12257)

* docs: added saved payment methods with Stripe tutorial

* fix vale error + lint

* generate

www/apps/resources/app/storefront-development/checkout/payment/stripe/page.mdx

@@ -249,4 +249,5 @@ const getPaymentUi = useCallback(() => {
 
 ## More Resources
 
-Refer to [Stripe's documentation](https://docs.stripe.com/) for more details on integrating it in your storefront.
+- [Stripe's documentation](https://docs.stripe.com/).
+- [Saved Payment Methods with Stripe](../../../../how-to-tutorials/tutorials/saved-payment-methods/page.mdx).