[sysk]

Have you tried Gitbook? (https://www.gitbook.io/ https://news.ycombinator.com/item?id=7524956)

[antrix]

If I understand correctly, the gitbook toolchain isn't freely available. Nor does gitbook address any of the limitations of Markdown that prompted me to switch to Asciidoc.

[steveklabnik]

20% per transaction is just too much.