* Sync zh and zh-hant version.
* Add the Warp sponsor banner.
* Update README with acknowledgments and Warp recommendation
Added acknowledgments and a recommendation for the Warp terminal application.
* Update README.md
* Update links in README.md to use HTTPS
* Sync zh and zh-hant versions.
* Add special thanks for Warp spnsorship.
* Use official warp image link.
* Sync zh and zh-hant versions.
* Remove the polyfill.io link from mkdocs.yml
* Update contributors' info for code reviewers and en/zh-hant versions reviewers.
* Fix graph.md
* Update avatars for English version reviewers.
* Sync zh and zh-hant versions.
* Fix two_sum_brute_force.png
* Sync zh and zh-hant versions.
Optimize structrue of index.html.
* Format index.html