v1.8.1: Fix README rendering on npm
Fixes
- README not rendering on npm — a stray closing code fence (
```) after theupdate_ai_readme"Note" block left the file with an odd number of fences. npm's markdown renderer mis-parsed everything after it and showed no README. Removed the stray fence. - Docs: documented the now-required
projectRootparameter onupdate_ai_readmeandcompress_ai_readme(required since v1.8.0).
No code changes — v1.8.0 behavior is unchanged.