#43 Requested adjustments in the certification

- Add more information about this env vars.

README.md

@@ -200,8 +200,8 @@ Here you can see the details about various variables in configuration
 - CTP_AUTH_URL: The URL for authentication in commercetools platform. It is used to generate OAuth 2.0 token which is required in every API call to commercetools composable commerce. The default value is `https://auth.europe-west1.gcp.commercetools.com`. For details, please refer to documentation [here](https://docs.commercetools.com/tutorials/api-tutorial#authentication).
 - CTP_API_URL: The URL for commercetools composable commerce API. Default value is `https://api.europe-west1.gcp.commercetools.com`.
 - CTP_SESSION_URL: The URL for session creation in commercetools platform. Connectors relies on the session created to be able to share information between enabler and processor. The default value is `https://session.europe-west1.gcp.commercetools.com`.
-- CTP_JWKS_URL: The URL which provides JSON Web Key Set.
-- CTP_JWT_ISSUER: The issuer inside JSON Web Token which is required in JWT validation process.
+- CTP_JWKS_URL: The URL which provides JSON Web Key Set (set the region of your project): https://mc-api.{region}.commercetools.com/.well-known/jwks.json
+- CTP_JWT_ISSUER: The issuer inside JSON Web Token which is required in JWT validation process (set the region of your project): https://mc-api.{region}.commercetools.com
 - STRIPE_CAPTURE_METHOD: Stripe capture method (manual or automatic), default value: automatic.
 - STRIPE_APPEARANCE_PAYMENT_ELEMENT: Stripe Elements supports visual customization, which allows you to match the design of your site with the `appearance` option. This value has the specific appearance of the Payment Element component.
 - STRIPE_APPEARANCE_EXPRESS_CHECKOUT: Stripe Elements supports visual customization, which allows you to match the design of your site with the `appearance` option. This value has the specific appearance of the Express Checkout Element component.