* Add hint to example admin config
* Add hint and hint position boolean above/below widget
* Style hint for both above and below widget
* Add hint and hint_above options to docs
* Remove hint above and make hint plaintext
Prettier formatting our markdown files is causing bugs because of the
differences between Gatsby's parser and Prettier's. Also, Prettier
formats the inline code-blocks containing example CMS configs, but the
formatting it uses doesn't really make much sense or match the suggested
CMS config style.
It doesn't actually make much sense to format the docs anyway, since we
use the CMS itself to edit/generate them.
