* Update pythontutor block with the latest code
* Move docs-en to en/docs
* Move mkdocs.yml and README to en folder
* Fix en/mkdocs.yml
* Update the landing page
* Fix the glossary
* Reduce the font size of the code block tabs
* Add Kotlin blocks to en/docs
* Fix the code link in en/.../deque.md
* Fix the EN README link
* Update summary.md
changed some words to make it more consistent to the changed mds.
* Update summary.md
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Co-authored-by: Yudong Jin <krahets@163.com>
* Update the format of Q&As in docs-en
* Fix the code comments of JavaScript and TypeScript
* Add the initial translation of the chapter of stack and queue
* Add the translation of the data structure chapter. Synchronize the headings in mkdocs-en.yml
* Fix a typo
* Add the translation of the array and linked-list chapter