release 0.2.0: expand CI wheel matrix, overhaul docs and SEO

- CI/CD builds wheels for linux (glibc+musl, 6 archs), windows (x64/x86/arm64),
  macos (intel+apple silicon), and pypy 3.9/3.10, with lint, cross-version
  wheel tests, auto publish on tags, and github releases
- docs: valid zensical SEO config with og/twitter/json-ld via template
  overrides, new benchmarks/comparison/faq pages, front matter on all pages,
  fixed code samples (flattened claims, imports, signatures)

Co-authored-by: Cursor <cursoragent@cursor.com>

add .gitattribute

fix autocomplete

Update docs.yml

fix python syntax

fix logo