* A bug fixes
* Sync zh and zh-hant versions.
* Fix a question in chapter_array_and_linkedlist/summary.md
* Optimize a definition in what_is_dsa.md
* Fix the Contributing guidelines for Chinese-to-English.
* Add a q&a in chapter_array_and_linkedlist/summary.md
* Sync zh and zh-hant versions.
* Update .gitignore
* Sync zh and zh-hant versions.
* Add Ruby and Kotlin icons
Add the avatar of @curtishd
* Update README
* Synchronize zh-hant and zh versions.
* Translate the pythontutor blocks to traditional Chinese
* Fix en/mkdocs.yml
* Update the landing page of the en version.
* Fix the Dockerfile
* Refine the en landingpage
* Fix en landing page
* Reset the README.md