fix typo

flourscence: better description

fix tilde in url on footer

add link for fluorescence

footer: source link

make last build discoverable

add link for sparkles

better tagline for fluorescence

tweak margins

more sizing tweaks

adjust margins

fill out oss contrib

ci: use latexmk

outline, content-wise complete until oss contrib

ci: add missing font

set up sourcehut ci

initial commit