TerribleTortoise

This needs a “reticulating splines” step.

Not exactly what you asked for but Joplin files are markdown. The app itself (very cross platform) renders them in a nice format. https://joplinapp.org/

For science: https://www.sciencedirect.com/science/article/abs/pii/S1752928X17301038?via%3Dihub

Edit:
You can’t just post something like that and not a source! Citation required!

Boeing technicians: “Amateurs!”