Add documentation on user management pages for ASP.NET Identity (#1086)

Author: maartenba

astro/src/content/docs/identityserver/aspnet-identity/index.md

@@ -63,6 +63,19 @@ our `ProfileService<TUser>` and override `IsUserActiveAsync(TUser user)` to chec
 
 ## Template
 
-Alternatively, you can use the `duende-is-aspid` [template](/identityserver/overview/packaging.mdx#templates) to create a starter
+You can use the `duende-is-aspid` [template](/identityserver/overview/packaging.mdx#templates) to create a starter
 IdentityServer host project configured to use ASP.NET Identity. See
 the [Quickstart Documentation](/identityserver/quickstarts/5-aspnetid.md) for a detailed walkthrough.
+
+## User Management Pages
+
+The IdentityServer templates only include pages necessary for the authentication flow (login, logout,
+consent, error). User management pages — such as forgot password, password reset, or two-factor
+authentication setup — are not part of the IdentityServer templates because they are specific to your
+user store implementation.
+
+Since ASP.NET Core Identity provides built-in support for these features, you can add them to your
+IdentityServer host by [scaffolding Identity into your project](https://learn.microsoft.com/en-us/aspnet/core/security/authentication/scaffold-identity).
+This gives you ready-made pages for password reset, email confirmation, two-factor authentication,
+and more — all integrated with the ASP.NET Core Identity user store you've already configured.
+