This is the simplest Markdown web editor I've seen, and it's really comfortable to use. However, there are still a few small issues. After I type something, the Markdown is immediately rendered into the final format, which makes it difficult to edit the text afterward (for example, if I want to remove bold formatting or change heading levels). It would be great if there could be an option to display the current paragraph as source code, so I can more easily edit the document again.