* Bug fixes
* Fix the term in heap figures
* Unify the font of the chapter covers for the zh, en, and zh-Hant version
* Sync the zh-hant vertion with the main branch
* Update README for testing
* Update README for testing
* Update README for testing
* Update README for zh, en, zh-hant version
* Fix the issue links
* Update README
* Update README
* edition -> version
* Update all the figures
* Update the data structure, sorting, divide and conquer chapters' covers. Add the English edition covers.
* Fix the link of EN translation in README
* Update README.md
* Update README.md
* Update README-en.md