More text formats now available!

I've just added two new formats:

• a monochrome print-friendly A5 zine
• a .txt file for screen readers

As well as making the following changes to the original dark and light modes:

• switched from spreads to singles
• reorganised some of the pages (particularly the deaths page)
• clarified actions involving building the coin tower and tossing coins (previously described as flipping, which wasn't 100% clear)