Update README

Skills live under skills/<bucket>/<skill>/SKILL.md or skills/<bucket>/<tech>/<skill>/SKILL.md. After any change to a skill's name, description, directory, or bucket, regenerate the catalogs by running the script from the repo root:

bash skills/workflow/do-update-readme/update-readme.sh

It rewrites:

• each nonempty bucket README.md (Beagle-docs layout: install, skills table, see also)
• each skills/engineering/<tech>/README.md
• the short bucket table between <!-- skills-start --> and <!-- skills-end --> in the root README.md

Do not hand-edit those generated regions. Descriptions come from SKILL.md frontmatter; bucket blurbs from skills.sh.json.

When to run