The page gains a print stylesheet: A4 with a cover, a contents page whose
entries carry their page numbers, a chapter to a page with its name at the
head of each page and the page count at the foot, figures and table rows
never split, and the light palette. A line above the title links the PDF
and the EPUB on the published site, absolutely, since an installed copy
has none beside it.
The Manual pages workflow makes both: tools/manual/pdf.py renders the page
with WeasyPrint from JPEG copies of its pictures, which takes the PDF from
28 MB to 8, and pandoc makes the EPUB from the Markdown.
