Update MCP C# Asp.Net Repository link in README

Author: BenjaminMichaelis

README.md

@@ -4,7 +4,7 @@ MCP Sample for .Net user group on 10/7/2025
 
 ## Resources
 - [Introduction to MCP](https://modelcontextprotocol.io/docs/getting-started/intro)
-- [MCP C# Asp.Net Repository](https://github.com/BenjaminMichaelis/DotnetTemplates?tab=readme-ov-file#installing)
+- [MCP C# Asp.Net Repository](https://github.com/modelcontextprotocol/csharp-sdk/blob/main/src/ModelContextProtocol.AspNetCore/README.md)
 - [MCP C# Repository](https://github.com/modelcontextprotocol/csharp-sdk)
 - [MCP Specification 2025-06-18](https://modelcontextprotocol.io/specification/2025-06-18)
 - [MCP Inspector](https://github.com/modelcontextprotocol/inspector)