Module usage documentation

This module is brilliant, but the documentation is a little... light. (There kind of mostly isn't any.) The instructions on the project page seem simple at first glance, but personally I spent an hour troubleshooting a silly mistake (and feeling very dumb) before I got it working. It also seems like a big chunk of the modules issues are "How the heck do I use this," so more documentation might help fix that.

If I were to create a book page with a somewhat more detailed set of instructions, would you consider linking it as "view module documentation" on the project page? Also, I think a few screenshots would be very helpful ("What argument? Who? Where?"), but as I'm not a member of the documentation team, I wouldn't have access to add attachments to a book page. How would I go about getting any screenshots added to the aforementioned hypothetical book page?

Thanks!