Link to a tutorial, or any instructions at all
Alas I have combed the website, and it does not contain any instructions at all of what to do. It should have a tutorial, from the first step to the last, of some person using the site to do what it's supposed to do in its most basic form.
Okay, I guess I'll just have to Google for some.
Here's a great introduction - https://programminghistorian.org/en/lessons/introduction-map-warper
No reason to be like this when people are creating stuff for everyone on their own time and this showed up in the first few Google hits.
After a break of a few months, I come back to the site, and don't remember how to use it again, and must go to github and look for this bug which has the link to the tutorial. I suppose this will be the permanent way to use the site.