Markdown and instructions for an app page

Hi, as a developer of an. App for windsurfing slalom racing it turned out (after 33 versions) the applications needs the instruction page for the users.

it would be great to have markdown editor, more images for the different models (as i have different vew of an app on different devices) and so on.

the app is free, i can put these instructions somethere like github pages, but i believe keep it on garmin resources is the most natural way to document software