* Update README.md with contributors.png

Replace dynamic svg from opencollective with static png for improved stability and lighter size (400kB vs 2MB).

@AyushExel

* Update README.md

* Update README.md

* Update README_cn.md

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ciCo-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>