Azure CXP Fixes MicrosoftDocs/azure-docs#49751

Author: ketan-chawda-msft

includes/relay-hybrid-connections-http-requests-dotnet-get-started-client.md

@@ -82,6 +82,7 @@ In Visual Studio, create a new **Console App (.NET Framework)** project.
     using System.IO;
     using System.Threading;
     using System.Threading.Tasks;
+    using System.Net.Http;
     using Microsoft.Azure.Relay;
 
     namespace Client