docs: Add YouTube MCP server to community servers list

[ZubeidHendricks]

Description
This PR adds a reference to my YouTube MCP Server implementation that enables AI language models to interact with YouTube services.

Server Details

• Server Type: Community Server
• Server Repository: https://github.com/ZubeidHendricks/youtube-mcp-server

Changes Made

• Added YouTube server entry to Community Servers section in alphabetical order

Features of the YouTube Server

• Video Management
  • Transcript/caption generation
  • Video metadata access
  • Search capabilities
• Analytics Integration
  • Performance tracking
  • Viewer metrics
• Shorts Creation Support
  • Auto-segment detection
  • Trending hashtag analysis

Breaking Changes
None - Just adding a new server reference to the README

Checklist

• I have read the MCP Protocol Documentation
• My server follows MCP security best practices
• I have added my server in alphabetical order in the README
• I have tested the server with an LLM client
• My code follows the repository's style guidelines

This PR supersedes my previous PR #439, as this one has the correct repository link and branch structure.

[dsp-ant]

Thank you for contributing this YouTube MCP server implementation. The code has been reviewed for security and follows good practices. This was generated by Claude.