Update README.md

Corrected aspnetcore SignalR repo link

README.md

@@ -6,7 +6,7 @@ Azure SignalR Service is an Azure managed service that helps developers easily b
 
 This service supports both [ASP.NET Core SignalR](https://github.com/aspnet/SignalR) and [ASP.NET SignalR](https://github.com/SignalR/SignalR). [SignalR](https://github.com/aspnet/SignalR) is an open source library that simplifies the process of adding real-time web functionality to applications. 
 
-> The ASP.NET Core version is not a simple .NET Core port of the original SignalR, but a [rewrite](https://blogs.msdn.microsoft.com/webdev/2017/09/14/announcing-signalr-for-asp-net-core-2-0/) of the original version. As a result, [ASP.NET Core SignalR](https://github.com/aspnet/SignalR) is not backward compatible with [ASP.NET SignalR](https://github.com/SignalR/SignalR) (API interfaces and behaviors are different). If it is the first time you try SignalR, we recommend you to use the [ASP.NET Core SignalR](https://github.com/aspnet/SignalR), it is **simpler, more reliable, and easier to use**.
+> The ASP.NET Core version is not a simple .NET Core port of the original SignalR, but a [rewrite](https://blogs.msdn.microsoft.com/webdev/2017/09/14/announcing-signalr-for-asp-net-core-2-0/) of the original version. As a result, [ASP.NET Core SignalR](https://github.com/aspnet/SignalR) is not backward compatible with [ASP.NET SignalR](https://github.com/SignalR/SignalR) (API interfaces and behaviors are different). If it is the first time you try SignalR, we recommend you to use the [ASP.NET Core SignalR](https://github.com/dotnet/aspnetcore/tree/main/src/SignalR), it is **simpler, more reliable, and easier to use**.
 
 > For more information about SignalR, please visit SignalR official [site](https://www.asp.net/signalr).