Rewrite README.md with centered layout and modern badges

[google-labs-jules]

This change rewrites the README.md file to provide a clear and concise overview of the Baritone Docs MCP project.

Changes:

• Centered Layout: All sections, including titles, descriptions, and tables, are individually wrapped in <div align="center"> tags for a consistent visual style.
• Modern Badges: Added Version, License, and Status badges with style=for-the-badge.
• Feature Table: A centered table listing key features (Refresh Docs, Search Docs, Read Doc, Resource Access).
• Project Structure Table: A centered table outlining the purpose of key files and directories (src/index.ts, src/tools/, scraper/, etc.).
• Content Updates: The description and feature list were derived from a codebase analysis to ensure accuracy.

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PR created automatically by Jules for task 3343082802504736070 started by @GhostTypes

[google-labs-jules]

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