* Improve demo (REPL, sandbox) on the main page
* Update button label
* Update textarea styles
* Change input event listeners to change
* Stack editor/render views vertically
* Add animation to options panel
* Open options panel and maximize view when hash is `demo`
* Fix clipboard text building
* Add -ms prefix to flex-direction
* Set width for [type="color"]
* Add macro example to the demo
* website/docs: initial commit
* Change secondaryColor
* Fix index.css not being copied and included on global stylesheet
* Fix stylesheet link
[skip ci]
* Change documentation link to API(Usage)
[skip ci]
* Add `Libraries` in usage
[skip ci]
* Remove documentation from `README.md` and add link to the site
[skip ci]
* Use KaTeX in the parent directory to build Markdown
[skip ci]
* Revise function support page. Avoid error msgs.
* General edit to function support page
