docs: missing setup instructions for datahub.noxiaohao.com/mcp #5

Summary

The Skill Hub README and docs/skill-hub.md both state that 4 of the 5 bundled skills (macro-analyst, market-intel, news-briefing, sentiment-analyst) depend on the market-data MCP server at https://datahub.noxiaohao.com/mcp, but the repo never explains how to install / configure it.

As a result, after running the documented one-shot installer, the skills are deployed but cannot actually fetch any live data — every call ends in "tool not found / server not connected".

Where the gap is

The only mentions of datahub.noxiaohao.com/mcp in the entire repo are these two sentences:

• README.md — links to docs/skill-hub.md for "full documentation".

• docs/skill-hub.md (last paragraph):

  Most skills depend on the market-data MCP server (https://datahub.noxiaohao.com/mcp) for live data. Configure it in your Claude Code MCP settings before using these skills.

That is the entire instruction. There is no:

• docs/datahub-setup.md (or equivalent) — checked, doesn't exist
• JSON / TOML config snippet for Claude Code, Cursor, Codex, Claude Desktop, Windsurf, etc.