* Render the book in PDF using `pandoc` and LaTeX.
* Fix installs.
* Go the apt-get route
* Another attempt
* Avoid installing twice.
* Re-order.
* Add more packages.
* Minimise deps. Fix link checker.
* Missing package.
* Missing package.
* Missing package.
* More packages.
* Missing package.
* Missing package.
* More packages...
* Remove.
* Fix link checker.
* Fix link checker.
* Fix path.
* Add subtitle.
* Avoid running over the right margin.
* Avoid running over the right margin.
* Formatting
We use an mdbook preprocessor to automatically generate links to the relevant exercise for each section.
We remove all existing manual links and refactor the deploy process to push the rendered book to a branch.
