Update AD nuget package version to 5.2.0

Author: metanMSFT

articles/cognitive-services/immersive-reader/quickstart.md

@@ -59,7 +59,7 @@ The following code uses objects from the **Microsoft.IdentityModel.Clients.Activ
 Open the NuGet Package Manager Console from **Tools -> NuGet Package Manager -> Package Manager Console** and run the following command:
 
 ```powershell
-    Install-Package Microsoft.IdentityModel.Clients.ActiveDirectory -Version 5.1.0
+    Install-Package Microsoft.IdentityModel.Clients.ActiveDirectory -Version 5.2.0
 ```
 
 ### Update the controller to acquire the token