docs: fix broken links in Documentation Index (#822)

Update Documentation Index section to reflect the current directory
structure after the docs reorganization in #728. The old links to
./guides/ and ./explanations/ no longer exist.

Fixes #821

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Co-authored-by: Claude <noreply@anthropic.com>
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Jonathan Hefner 2025-12-08 07:43:16 -06:00 • committed by GitHub
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@ -12,6 +12,8 @@ The MCP registry provides MCP clients with a list of MCP servers, like an app st
## Documentation Index
- 🛠️ [How-To Guides: Task-focused instructions](./guides/)
- 💡 [Explanations: Understanding-oriented content](./explanations/)
- 📖 [Reference: Technical specifications and lookup material](./reference/)
- 📄 [Public-facing docs](./modelcontextprotocol-io/) - Published on modelcontextprotocol.io
- 🏗️ [Design documentation](./design/) - Architecture, vision, and roadmap
- 📖 [Reference](./reference/) - Technical specifications
- 🔧 [Contributing guides](./contributing/) - How to contribute
- 🔒 [Administration](./administration/) - Admin operations