Add timestamp to README

This adds a "last updated" timestamp to the README for tracking purposes.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: hstaudacher

README.md

@@ -1,5 +1,7 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/github/github-mcp-server)](https://goreportcard.com/report/github.com/github/github-mcp-server)
 
+*Last updated: 2026-02-04*
+
 # GitHub MCP Server
 
 The GitHub MCP Server connects AI tools directly to GitHub's platform. This gives AI agents, assistants, and chatbots the ability to read repositories and code files, manage issues and PRs, analyze code, and automate workflows. All through natural language interactions.