up from 2.0 to 2.1

Author: sffamily

articles/azure-signalr/signalr-quickstart-dotnet-core.md

@@ -11,7 +11,7 @@ ms.author: zhshang
 # Quickstart: Create a chat room by using SignalR Service
 
 
-Azure SignalR Service is an Azure service that helps developers easily build web applications with real-time features. This service is based on [SignalR for ASP.NET Core 2.0](https://docs.microsoft.com/aspnet/core/signalr/introduction?view=aspnetcore-2.0), but also supports [SignalR for ASP.NET Core 3.0](https://docs.microsoft.com/aspnet/core/signalr/introduction?view=aspnetcore-3.0).
+Azure SignalR Service is an Azure service that helps developers easily build web applications with real-time features. This service is based on [SignalR for ASP.NET Core 2.1](https://docs.microsoft.com/aspnet/core/signalr/introduction?view=aspnetcore-2.1), but also supports [SignalR for ASP.NET Core 3.0](https://docs.microsoft.com/aspnet/core/signalr/introduction?view=aspnetcore-3.0).
 
 This article shows you how to get started with the Azure SignalR Service. In this quickstart, you'll create a chat application by using an ASP.NET Core MVC web app. This app will make a connection with your Azure SignalR Service resource to enable real-time content updates. You'll host the web application locally and connect with multiple browser clients. Each client will be able to push content updates to all other clients.