Chapter 11.1: Left over TODOs for render animations

[Christovis]

The following TODO was left at two places in the text (page 134 in the PDF):

This generates the anima on shown in TODO: render animation

Could a temporary fix, until the new build for the book is finished, simply be a QR code as a pointer?

[noelwelsh]

I'm working on a prototype of the new build, using a combination of mdoc options I didn't previously know about and some JS static site generation. It shouldn't take too long to get something up; I'd rather work on that than work on a QR code.