Build new tutorial/walkthrough

[jameslaneconkling]

iD has a create, general purpose walkthrough for new users. Could customize this for a logging road-specific walkthrough (though I've heard the walkthrough is buggy and a pain in the ass to handle)

Also, slack has a pretty smooth intro/on-boarding process.

Otherwise, simply embedding short, 1-min videos and better documentation could be an easy enough way to pull this off.