Update src/pages/gen2/build-a-backend/data/customize-authz/signed-in-user-data-access/index.mdx

Co-authored-by: Rene Brandel <4989523+renebrandel@users.noreply.github.com>

Author: chrisbonifacio

src/pages/gen2/build-a-backend/data/customize-authz/signed-in-user-data-access/index.mdx

@@ -53,7 +53,7 @@ const { errors, data: newTodo } = await client.models.Todo.create(
 );
 ```
 
-## Override the authentication provider
+## Use identity pool for signed-in user authentication
 
 You can also override the authorization provider. In the example below, `iam` is specified as the provider which allows you to use an "Unauthenticated Role" from the Cognito identity pool for public access instead of an API key. Your Auth resources defined in `amplify/auth/resource.ts` generates scoped down IAM policies for the "Unauthenticated role" in the Cognito identity pool automatically.