The wizard asciinema is nice, but does a lot of things. It would be nice to have a walkthrough of what it does. I think the simple version would just be a bunch of "screenshots" (ideally asciinema could generate this from the cast as a static something, but I'm not sure it's able to do that) of various interesting stages with explanatory text. Of course a fancy version could overlay explanations onto the actual asciinema, but that's probably more trouble than it's worth (unless somebody feels like having some javascript fun).