If you’re planning to release your markdown-based thing free, consider making a website out of it as well! Platen lets you do that. It’s a markdown-based site generator. https://github.com/platenio/platen-template
(I’m a maintainer on it and will be working to add things to it - right now I’m working on an export function that will let you take the site you’ve made, turn it back into a single markdown doc, and export it. In addition to the demo there, you can see it in action in my submission to the jam: https://binarystar.games/ )