Feature request: A generating feature of Markdown files

[zacky1972]

Hi,

Today, markdown files become more important because of the emergence of AI that can read and use them.
So, I propose to add a generating feature of markdown files instead of html or ePub.

[josevalim]

Thank you. There are a few scattered discussions about this: #2102, #1976, #1992. Also related: #1962. :)