* Add repo-standardizer skill: polish any GitHub repo surface
* fix(skill): remove non-string metadata and fix template README refs for vally lint
* docs(skill): drop markdown relative links from README language-switcher example
Vally valid-refs flagged ./README.md and ./README.zh.md as missing file
references; they are generated artifacts, not skill files. Keep the
example as plain text to satisfy the linter.
* fix(template): add missing language switcher to English README template
Align with README.zh.md template and SKILL.md switcher convention:
current language as plain text, other languages as relative links.
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Co-authored-by: programmingWTF <programmingWTF@users.noreply.github.com>
Guiyu Li