Merge pull request #768 from DuendeSoftware/maartenba-patch-1

Update 2-interactive.md

Author: maartenba

src/content/docs/identityserver/quickstarts/2-interactive.md

@@ -555,7 +555,12 @@ Register and configure the services for the OpenId Connect handler in`src/Identi
 
 ```cs
 // HostingExtensions.cs
-builder.Services.AddAuthentication()
+builder.Services.AddAuthentication(options =>
+    {
+        options.DefaultScheme = "Cookies";
+        options.DefaultChallengeScheme = "oidc";
+    })
+    .AddCookie("Cookies")
     .AddOpenIdConnect("oidc", "Sign-in with demo.duendesoftware.com", options =>
     {
         options.SignInScheme = IdentityServerConstants.ExternalCookieAuthenticationScheme;
@@ -656,4 +661,4 @@ claims sourced from Google's data.
 The Google button is rendered by the login page automatically when there are external providers registered as
 authentication schemes. See the `BuildModelAsync` method in `src/IdentityServer/Pages/Account/Login/Index.cshtml.cs` and
 the corresponding Razor template for more details.
-:::
+:::