Merge pull request #790 from saleor/update-adyne

Update Adyen page

docs/developer/app-store/apps/adyen.mdx

@@ -40,7 +40,7 @@ Adyen App follows the flow described in detail in the [Saleor Payment App docume
 
 ## Configuration
 
-For Adyen to appear as [available payment gateway](../../checkout/finalizing#listing-available-payment-gateways), you need to [install it in the Saleor Dashboard](../overview#usage). You need to obtain the API key from Adyen and paste it into the Adyen App configuration form. Then, a wizard will guide you through the process of configuring the Adyen App, setting up the webhook to receive notifications from Adyen, generating the HMAC key, and adding allowed origins for the Client Key that's used on your Storefront.
+For Adyen to appear as [available payment gateway](../../checkout/finalizing#listing-available-payment-gateways), you need to [install it in the Saleor Dashboard](../overview#usage). You must obtain the API key from Adyen and paste it into the Adyen App configuration form. Then, a wizard will guide you through the process of configuring the Adyen App, setting up the webhook to receive notifications from Adyen, generating the HMAC key, and adding allowed origins for the Client Key that's used on your Storefront.
 
 ## Usage in Storefront or mobile apps
 
@@ -52,7 +52,7 @@ import GitHubLogo from "./adyen-web-drop-in.png";
 
 ### Getting payment gateways
 
-The first step is to fetch the Checkout object including [`availablePaymentGateways`](../../../api-reference/checkout/objects/checkout#code-style-fontweight-normal-checkoutbavailablepaymentgatewaysbcodepaymentgateway---) field. The `availablePaymentGateways` field contains a list of payment gateways available for given checkout. The Adyen App should be one of the payment gateways available in the list. Its `id` is [`app.saleor.adyen`](https://github.com/saleor/saleor-app-payment-adyen/blob/canary/src/pages/api/manifest.ts#L15) - defined in app's manifest.
+The first step is to fetch the Checkout object including [`availablePaymentGateways`](../../../api-reference/checkout/objects/checkout#code-style-fontweight-normal-checkoutbavailablepaymentgatewaysbcodepaymentgateway---) field. The `availablePaymentGateways` field contains a list of payment gateways available for given checkout. The Adyen App should be one of the payment gateways available in the list. Its `id` is [`app.saleor.adyen`](https://adyen.saleor.app/api/manifest) - defined in app's manifest.
 
 ```graphql
 query {