Link to single PDF does not exist

[marrs]

I'd be interested in reading your book offline but the PDF link in the README does not appear to have been built.

[xpqz]

The pdf build process appears to fail for some reason. You can pick up the previous build:

https://github.com/xpqz/learnapl/blob/3f73b88c58c7b0f1e601bae19c6326fc9ac40a36/contents/_build/pdf/book.pdf

[xpqz]

I have updated the link on the README, but will leave this open until I can figure out why the build breaks.

[butterthebuddha]

This seems to be a problem with Jupyter Book itself? Someone else reported a similar problem to what I'm running into when building here: jupyter-book/jupyter-book#1732