feat: document how to customize redirect url

docs/identities/sign-in/social-sign-in/redirect-url.mdx

@@ -0,0 +1,44 @@
+---
+id: redirect-url
+title: Set custom domain as redirect URL
+sidebar_label: Custom domain redirect
+---
+
+Some Social Sign-in Providers such as Google or GitHub show the Redirect URL as part of the sign-in process. By default, Ory
+Network uses a redirect URL that points to the Ory Network domain:
+
+![GitHub showing the redirect URL](redirect-url/callback.png)
+
+:::caution
+
+Changing the `base_redirect_uri` will break previously existing and functional social sign-in connections.
+
+:::
+
+To change the redirect URL to your custom domain, you need to update the `base_redirect_uri`:
+
+```shell
+## List all available projects
+ory list projects
+
+## Remove the configuration entry
+ory patch identity-config <project-id> \
+  --add '/selfservice/methods/oidc/config/base_redirect_uri="https://ory.example.org"'
+```
+
+After changing the base redirect URI you need to update the redirect URL of social sign-in providers you want to use. This is done
+in the configuration of the social sign-in provider. To update an existing social sign in provider, follow these steps:
+
+1. Open the Ory Console and navigate to the social sign-in configuration screen.
+1. Choose the provider you want to fix and click on the configuration button.
+1. Copy the **Redirect URI** from the form.
+1. Replace the Ory Network URL `{project-slug}.projects.oryapis.com` with your custom hostname, such as `ory.example.org`.
+1. Update the Redirect URI - also called Authorization callback URL - in the social sign-in provider configuration.
+
+:::info
+
+Make sure the Redirect URI matches the hostname you configured in the Ory Network configuration. For example when your custom
+hostname is `https://ory.example.org`, the Redirect URI needs to be `https://ory.example.org`, not `https://www.ory.example.org`
+or `https://ory.example.org/`.
+
+:::

src/sidebar.js

@@ -87,6 +87,7 @@ module.exports = {
                   ],
                 },
                 "kratos/social-signin/get-tokens",
+                "identities/sign-in/social-sign-in/redirect-url",
                 "kratos/social-signin/data-mapping",
                 "kratos/social-signin/account-linking",
                 "kratos/social-signin/native-apps",