Finalize retirement of gh-pages branch (#4626)

* Finalize retirement of gh-pages branch

* Add redirecting README
5 files changed
tree: 1967d22d469921a1e43bd8d66b3a68f7c50486d9
  1. lints/
  2. .gitignore
  3. .nojekyll
  4. dart-192.png
  5. favicon.ico
  6. index.html
  7. params.json
  8. README.md
  9. styles.css
README.md

Linter documentation has moved

You can find up-to-date linter documentation on the Dart website at https://dart.dev/lints.