Update ws-federation.md (#18147)

Author: Rick-Anderson

aspnetcore/security/authentication/ws-federation.md

@@ -10,9 +10,9 @@ uid: security/authentication/ws-federation
 ---
 # Authenticate users with WS-Federation in ASP.NET Core
 
-This tutorial demonstrates how to enable users to sign in with a WS-Federation authentication provider like Active Directory Federation Services (ADFS) or [Azure Active Directory](/azure/active-directory/) (AAD). It uses the ASP.NET Core 2.0 sample app described in [Facebook, Google, and external provider authentication](xref:security/authentication/social/index).
+This tutorial demonstrates how to enable users to sign in with a WS-Federation authentication provider like Active Directory Federation Services (ADFS) or [Azure Active Directory](/azure/active-directory/) (AAD). It uses the ASP.NET Core sample app described in [Facebook, Google, and external provider authentication](xref:security/authentication/social/index).
 
-For ASP.NET Core 2.0 apps, WS-Federation support is provided by [Microsoft.AspNetCore.Authentication.WsFederation](https://www.nuget.org/packages/Microsoft.AspNetCore.Authentication.WsFederation). This component is ported from [Microsoft.Owin.Security.WsFederation](https://www.nuget.org/packages/Microsoft.Owin.Security.WsFederation) and shares many of that component's mechanics. However, the components differ in a couple of important ways.
+For ASP.NET Core apps, WS-Federation support is provided by [Microsoft.AspNetCore.Authentication.WsFederation](https://www.nuget.org/packages/Microsoft.AspNetCore.Authentication.WsFederation). This component is ported from [Microsoft.Owin.Security.WsFederation](https://www.nuget.org/packages/Microsoft.Owin.Security.WsFederation) and shares many of that component's mechanics. However, the components differ in a couple of important ways.
 
 By default, the new middleware:
 
@@ -113,4 +113,4 @@ With Azure Active Directory as the provider, the button redirects to an AAD sign
 ![AAD sign-in page](ws-federation/_static/AadSignIn.png)
 
 A successful sign-in for a new user redirects to the app's user registration page:
-![Register page](ws-federation/_static/Register.png)
+![Register page](ws-federation/_static/Register.png)