Update dead link in readme (#154)

* Update dead link in readme

* Updated typo: Mananager 🍌

Author: shweaver-MSFT

README.md

@@ -70,8 +70,8 @@ Leverage the official Microsoft Authentication Library (MSAL) to enable authenti
 
 Try out the WindowsProvider to enable authentication based on the native Windows Account Manager (WAM) APIs in your UWP apps, without requiring a dependency on MSAL.
 
-1. Associate your app with the Microsoft Store. The app association will act as our minimal app registration for authenticating consumer MSAs. See the [WindowsProvider docs](https://github.com/CommunityToolkit/Graph-Controls/edit/main/Docs/WindowsProvider.md) for more details.
-1. Install the `CommunityToolkit.Authentication.Uwp` package
+1. Associate your app with the Microsoft Store. The app association will act as our minimal app registration for authenticating consumer MSAs. See the [WindowsProvider docs](https://docs.microsoft.com/windows/communitytoolkit/graph/authentication/windows) for more details.
+1. Install the `CommunityToolkit.Authentication.Uwp` package.
 1. Set the GlobalProvider to a new instance of WindowsProvider with pre-configured scopes:
 
     ```csharp
@@ -96,7 +96,7 @@ ProviderManager.Instance.ProviderStateChanged += OnProviderStateChanged;
 
 void OnProviderStateChanged(object sender, ProviderStateChangedEventArgs args)
 {
-    var provider = ProviderMananager.Instance.GlobalProvider;
+    var provider = ProviderManager.Instance.GlobalProvider;
     if (provider?.State == ProviderState.SignedIn)
     {
         var graphClient = provider.GetClient();