- Add openclaw-free-web-search to categories/search-and-research.md
(source-of-truth file now in sync with README)
- Update skill count from 350 to 351 in both README and categories file
- Fix URL from personal repo (github.com/wd041216-bit/openclaw-free-web-search)
to canonical OpenClaw skills path (github.com/openclaw/skills/tree/main/skills/...)
as required by contribution guidelines