-- There are ("too"?) many Markdown editors
-- This is exactly what we need.
I like composing drafts in Markdown but I have to export them (to PDF to view and mark up in Remarkable, to Word to share with some people and so) quite often, and going into pandoc and remembering the commands adds extra layers.
This is a huge contribution.
p.s. because this is Hacker News, I hope some smart person is going to point out an even more efficient way to switch contexts. I am here for it if it doesn't involve trying to learn emacs for the 87th time.