Grab yourself a copy of food-free-at-last.html. This is the master file. Then download Calibre:
http://calibre-ebook.com/download
Run:
ebook-convert food-free-at-last.html food-free-at-last.epub \
--cover food-free-at-last-cover.jpg \
--author-sort "Porup, J.M." \
--authors "J.M. Porup&Dr Robert Jones MD PhD DDS ODD" \
--language English \
--series "Food-Free at Last" \
--series-index 1 \
--title "Food-Free at Last: How I Learned to Eat Air" \
--title-sort "Food-Free at Last: How I Learned to Eat Air" \
--preserve-cover-aspect-ratio
or if you're a Kindle user:
ebook-convert food-free-at-last.html food-free-at-last.mobi \
--cover food-free-at-last-cover.jpg \
--author-sort "Porup, J.M." \
--authors "J.M. Porup&Dr Robert Jones MD PhD DDS ODD" \
--language English \
--series "Food-Free at Last" \
--series-index 1 \
--title "Food-Free at Last: How I Learned to Eat Air" \
--title-sort "Food-Free at Last: How I Learned to Eat Air" \
--prefer-author-sort
or if you just want a PDF:
ebook-convert food-free-at-last.html food-free-at-last.pdf \
--cover food-free-at-last-cover.jpg \
--author-sort "Porup, J.M." \
--authors "J.M. Porup&Dr Robert Jones MD PhD DDS ODD" \
--language English \
--series "Food-Free at Last" \
--series-index 1 \
--title "Food-Free at Last: How I Learned to Eat Air" \
--title-sort "Food-Free at Last: How I Learned to Eat Air" \
--paper-size a4 \
--pdf-add-toc \
--pdf-page-numbers \
--preserve-cover-aspect-ratio \
--margin-bottom 72 \
--margin-top 72 \
--margin-left 72 \
--margin-right 72
Calibre's full command-line interface is documented here: