update readme

README.md

@@ -47,7 +47,7 @@ public void ConfigureServices(IServiceCollection services)
     services.AddMudMarkdownServices();
     // Optionally if the default clipboard functionality fails it is possible to add a custom service
     // NB! MauiClipboardService is just an example
-    builder.Services.AddMudMarkdownClipboardService<MauiClipboardService>();
+    services.AddMudMarkdownClipboardService<MauiClipboardService>();
 }
 ```
 For the Blazor WebAssembly in the `Program.cs` add this method.