github & markdown
collapse & table
https://github.com/Microsoft/TypeScript/issues/30034
GitHub collapse markdown
https://github.com/Mottie/GitHub-userscripts/wiki/GitHub-collapse-markdown
https://github.com/Mottie/GitHub-userscripts/wiki/GitHub-table-of-contents
https://github.com/Mottie/GitHub-userscripts/wiki/GitHub-collapse-in-comment
<details>
<summary>Click to expand</summary>
whatever
</details>
Click to expand
whateverspace line break & indent 4 space
demo
https://github.com/xgqfrms/WNAAIO/issues/1#issuecomment-474665079
<details>
<summary>Click to expand</summary>
```js
console.log(`hello world!`);
```
</details>
Click to expand
console.log(`hello world!`);
ok
docs
https://daringfireball.net/projects/markdown/
https://github.com/search?o=desc&q=markdown&s=stars&type=Repositories
https://github.com/younghz/Markdown
https://younghz.github.io/Markdown/
email applications
https://github.com/adam-p/markdown-here
https://markdown-here.com/
online tools
blogs
https://blog.codinghorror.com/standard-markdown-is-now-common-markdown/