Update website link in readme

README.md

@@ -9,7 +9,7 @@
 - **Multi-Agent WebUI**: Chat with multiple agents simultaneously in a web browser.
 - **Server mode**: You can run `ChatRoom.Client` as a restful server. For more information, see [Server mode](#-server-mode).
 - **API driven**: Use the `ChatRoom.SDK` to interact with the chatroom server programmatically.
-- **Extensible**: Use code-first approach to add your own agents to the chatroom.
+- **Extensible**: Use code-first approach to add agents to the chatroom, See [Use AutoGen.Net agent](https://littlelittlecloud.github.io/Agent-ChatRoom/get_start/use_autogen_net_agent.html) for more information.
 
 ## Install from NuGet
 `Agent Chatroom` is published as a dotnet tool on nuget.org. You can install the latest `Agent Chatroom` client from nuget.org by running the following command, this will install the `ChatRoom.Client` globally:

example/dotnet/hello-world/Program.cs

@@ -1,6 +1,4 @@
-
-
-using AutoGen.Core;
+using AutoGen.Core;
 using ChatRoom.SDK;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;

website/get_start/use_autogen_net_agent.md

@@ -1,5 +1,7 @@
 You can add AutoGen agent from your project to **Agent ChatRoom** using a code-first approach. First, you need to configure the chatroom services to either start a in-proc server or connect to an out-proc one. Then you create a @ChatRoom.SDK.ChatPlatformClient from configured services and use it to interact with the chatroom server. Finally, you can add an AutoGen agent to the chatroom by calling the @ChatRoom.SDK.ChatPlatformClient.RegisterAutoGenAgentAsync method on the `ChatPlatformClient` object.
 
+[![](https://img.shields.io/badge/Open%20on%20Github-grey?logo=github)](https://github.com/LittleLittleCloud/Agent-ChatRoom/blob/main/example/dotnet/hello-world/Program.cs)
+
 > [!Note]
 > `AutoGen.Net` is the .NET implementation of the AutoGen framework. It provides first-class support for connecting to various LLM platforms, tool-call usage, group chat and more. You can find more information and tutorial about `AutoGen.Net` [here](https://microsoft.github.io/autogen-for-net/index.html)