This looks great. We have too many markdown editors now BTW and none of them provide WYSIWYG like Typora. We really need an open source Typora clone.
I'll comment on the repo as well, but would love to see the ability to drop in a standard image.
(HN thread from Nov 2019: https://news.ycombinator.com/item?id=21462832 — I asked for other editors like this and got no other answers AFAICT. So this Mark Text is still the only open-source "WYSIWYG" Markdown editor I'm aware of.)
Edit: The https://github.com/blackhole89/notekit mentioned in a sibling comment is now another.
You're not in a fancy CMS editor with all these whiz-bang blocks and components--those are just noise that give you more anxiety (should I be making this paragraph a hero/lead element? wait no, what about a side-by-side with a graphic? oh, but what graphic? ... hrm, time to go waste 30 minutes looking at unsplash... oh wait, what was I writing again? oh nevermind, I guess I'll come back to finish this tomorrow when my head is clear).
You're not writing content in something that feels like a programming language filled with special characters, an IDE yelling at you for every little misplaced indent or space, etc.
You're just writing text with some light formatting to emphasize structure and key elements. Maybe some lists or bullet points thrown in. A graphic figure or two. It's just like composing an e-mail, something you've done thousands and thousands of times already in your life. There's no pomp and circumstance, no steep learning curve... just writing.