Small fixes to csharp

-------
cc: @jmprieur

Author: MarileeTurscak-MSFT

articles/active-directory/develop/scenario-web-app-call-api-app-configuration.md

@@ -269,14 +269,14 @@ The ASP.NET core tutorial uses dependency injection to let you decide the token
 
 ```csharp
 // Use a distributed token cache by adding:
-    services.AddSignIn(Configuration, "AzureAd");
+    services.AddSignIn(Configuration, "AzureAd")
             .AddWebAppCallsProtectedWebApi(Configuration,
                                            initialScopes: new string[] { "user.read" })
             .AddDistributedTokenCaches();
 
 // Then, choose your implementation.
 // For instance, the distributed in-memory cache (not cleared when you stop the app):
-services.AddDistributedMemoryCache()
+services.AddDistributedMemoryCache();
 
 // Or a Redis cache:
 services.AddStackExchangeRedisCache(options =>