Pandoc - improve monospace formatting

[loftwah]

Issue Description:

PanDoc monospace font is really big and goes too far over the page. Need to fix this at some point otherwise the PDF version looks a little odd in places.

Page number and chapter:

Everywhere

Expected result:

Fix monospace font

Additional context:

Nothing exciting.

Thanks for bringing this issue to our attention. We'll do our best to address it as soon as we can.

Yarrrr!