docs(#14): Add stripe docs

docs/stripe-setup.md

@@ -0,0 +1,35 @@
+# Stripe webhook event listening
+
+> First ensure you've installed the [Stripe CLI](https://docs.stripe.com/stripe-cli)
+
+Log in using the stripe CLI:
+
+```bash
+stripe login
+```
+
+Obtain your Webhook signing secret:
+
+```bash
+stripe listen
+```
+
+Add the secret key to to your .env(.local):
+
+`PUBLIC_STRIPE_ENDPOINT_SECRET`
+
+### Testing the webhook locally
+
+You can use the [Stripe CLI to forward events to your local server](https://docs.stripe.com/webhooks):
+
+```bash
+stripe listen --forward-to localhost:5173/api/webhook/stripe
+```
+
+To disable HTTPS certificate verification, use the --skip-verify optional flag.
+
+```bash
+stripe listen --forward-to localhost:5173/api/webhook/stripe --skip-verify
+```
+
+TODO - Add instructions for what else to do to get the webhook working locally.