fix

Author: YunchuWang

src/Extensions/Azure/DurableTaskSchedulerExtensions.cs

@@ -1,4 +1,8 @@
-using Azure.Core;
+// ------------------------------------------------------------
+//  Copyright (c) Microsoft Corporation.All rights reserved.
+// ------------------------------------------------------------
+
+using Azure.Core;
 using Microsoft.DurableTask.Client;
 using Microsoft.DurableTask.Worker;
 

src/Extensions/Azure/DurableTaskSchedulerOptions.cs

@@ -1,4 +1,8 @@
-using System.Globalization;
+// ------------------------------------------------------------
+//  Copyright (c) Microsoft Corporation.All rights reserved.
+// ------------------------------------------------------------
+
+using System.Globalization;
 using Azure.Core;
 using Azure.Identity;