Support mado

[ccoVeille]

@akiomik made an interesting linter for Markdown files in Rust. Maybe you could consider it

https://github.com/akiomik/mado

[hougesen]

Looks like a pretty cool project.

The mado check command outputs texts on success which clashes with mdsf.

I have submitted a PR (akiomik/mado#78) that adds a flag for disabling that text. If that (or similar functionality) is merged I would love to add mado to the list 😄