Add write-good

[alok]

Linter for Markdown.

[adriaanzon]

See also: #455

[wakatara]

❤️ and 👍

[w0rp]

Thanks to work from @sumnerevans and some tests from yours truly, support for this is now in there.

[wakatara]

Woooo! ❤️ thank you for this!