Fix readme references to old .NET versions

Author: josephdecock

identity-model-oidc-client/samples/HttpSysConsoleClient/README.md

@@ -1,14 +1,14 @@
 ## HttpSysConsoleClient Sample
 This sample shows how to use Duende.IdentityModel.OidcClient to build a windows desktop
-application in .NET 8. It uses [manual
+application in .NET. It uses [manual
 mode](https://docs.duendesoftware.com/foss/identitymodel.oidcclient/manual/), and listens
 for callbacks on the loopback address with a hard-coded port.
 
 ### Description of Implementation
 This sample first creates an
 [HttpListener](https://learn.microsoft.com/en-us/dotnet/fundamentals/runtime-libraries/system-net-httplistener)
 to wait for callbacks from the identity provider at a hard-coded port on the local
-machine. Then it usesDuende.IdentityModel.OidcClient to prepare the state and url needed to
+machine. Then it uses Duende.IdentityModel.OidcClient to prepare the state and url needed to
 login, using that callback url as the redirect uri. It then opens the system browser to
 the authorize url by calling `Process.Start` and passing the url. After the user
 authenticates, the system browser redirects to the callback url. The HttpListener receives
@@ -20,4 +20,4 @@ and cleans up its HttpListener.
 
 ### HTTP.sys
 HttpListener is built on top of the HTTP.sys, the windows driver that handles http
-requests. 
+requests.

identity-model-oidc-client/samples/NetCoreConsoleClient/README.md

@@ -1,6 +1,6 @@
 ## NetCoreConsoleClient Sample
 This sample shows how to use Duende.IdentityModel.OidcClient to build a cross platform desktop
-application in .NET 8. It uses [automatic
+application in .NET. It uses [automatic
 mode](https://docs.duendesoftware.com/foss/identitymodel.oidcclient/automatic/), where an
 IBrowser implementation describes how to invoke the system browser. This sample's browser
 implementation knows how to open the system browser on Windows, Mac, and Linux (see
@@ -9,7 +9,7 @@ server. See SystemBrowser.cs for the full IBrowser implementation details.
 
 ### Description of Implementation
 This sample first finds an unused port to use as a callback url where it sets up a minimal
-kestrel web server listening for callbacks from the identity provider. 
+kestrel web server listening for callbacks from the identity provider.
 
 Then it uses Duende.IdentityModel.OidcClient to begin the login process, passing an
 instance of the SystemBrowser. Behind the scenes, Duende.IdentityModel.OidcClient prepares

identity-model-oidc-client/samples/WindowsConsoleSystemBrowser/README.md

@@ -1,6 +1,6 @@
 ## HttpSysConsoleClient Sample
 This sample shows how to use Duende.IdentityModel.OidcClient to build a windows desktop
-application in .NET 8. It uses [manual
+application in .NET. It uses [manual
 mode](https://docs.duendesoftware.com/foss/identitymodel.oidcclient/manual/), and listens for
 callbacks on a private-use URI scheme.