docs: update README external links

Author: npellegrin

README.md

@@ -116,8 +116,8 @@ See [oauth_support](docs/OAUTH_SUPPORT.md) for details.
 
 ## Related Resources
 
-- [MCP Specification](https://spec.modelcontextprotocol.io/specification/2024-11-05/)
-- [Schema](https://github.com/modelcontextprotocol/specification/blob/main/schema/2024-11-05/schema.ts)
+- [MCP Specification](https://modelcontextprotocol.io/specification/2025-11-25)
+- [Schema](https://github.com/modelcontextprotocol/specification/blob/main/schema/2025-11-25/schema.ts)
 
 ## Related Projects
 

docs/OAUTH_SUPPORT.md

@@ -1,6 +1,6 @@
 # Model Context Protocol OAuth Authorization
 
-This document describes the OAuth 2.1 authorization implementation for Model Context Protocol (MCP), following the [MCP 2025-03-26 Authorization Specification](https://spec.modelcontextprotocol.io/specification/2025-03-26/basic/authorization/).
+This document describes the OAuth 2.1 authorization implementation for Model Context Protocol (MCP), following the [MCP 2025-03-26 Authorization Specification](https://modelcontextprotocol.io/specification/2025-03-26/basic/authorization/).
 
 ## Features
 
@@ -117,7 +117,7 @@ If you encounter authorization issues, check the following:
 
 ## References
 
-- [MCP Authorization Specification](https://spec.modelcontextprotocol.io/specification/2025-03-26/basic/authorization/)
+- [MCP Authorization Specification](https://modelcontextprotocol.io/specification/2025-03-26/basic/authorization/)
 - [OAuth 2.1 Specification Draft](https://oauth.net/2.1/)
 - [RFC 8414: OAuth 2.0 Authorization Server Metadata](https://datatracker.ietf.org/doc/html/rfc8414)
 - [RFC 7591: OAuth 2.0 Dynamic Client Registration Protocol](https://datatracker.ietf.org/doc/html/rfc7591)

docs/readme/README.zh-cn.md

@@ -106,7 +106,7 @@ let quit_reason = server.cancel().await?;
 
 ## 相关资源
 
-- [MCP Specification](https://spec.modelcontextprotocol.io/specification/2024-11-05/)
+- [MCP Specification](https://modelcontextprotocol.io/specification/2024-11-05/)
 - [Schema](https://github.com/modelcontextprotocol/specification/blob/main/schema/2024-11-05/schema.ts)
 
 ## 相关项目