Add MCP server support for using up to date docs with LLMs

# Feature request

Solve the problem of having outdated dev docs when using LLM's, by enabling an MCP server for devdocs .

https://github.com/modelcontextprotocol/servers

## Summary

Solve the problem of having outdated dev docs when using LLM's, by enabling an MCP server for devdocs. Use something like cognee.a for Hybrid RAG w Knowledge graphs approach.

More about Model Context Protocol:

https://github.com/modelcontextprotocol/servers

## Examples

Image u are using the latest version of LlamaIndex, or any other new/recently updated dev docs, the LLM is at least 1 year behind latest developments.

Pls fix this

The issue names no files, tests, or entry points. Start by reviewing the linked Model Context Protocol server examples and the DevDocs architecture to identify where an MCP server could integrate. Before implementation, define the supported documentation sources, retrieval behavior, and acceptance tests for serving up-to-date docs to an LLM.

Written by the indexing model from the issue text.