Schalk W. Cronjé

Not sure what the best formatting would be for `[example]`. Potentially a special text block with a distinct FontAwesome icon.

Need to ensure that if an `[abstract]` is found it is rendered in the same wat as `[preface]`

See https://leanpub.com/help/manual#leanpub-auto-footnotes-and-endnotes See http://asciidoctor.org/docs/user-manual/#user-footnotes

Use attributes to tell Leanpub to switch between languages. Probably sometling like `:leanpub_lang:chinese` would work See also: https://leanpub.com/help/manual#leanpub-auto-languages-and-letter-accents

We want this kind of annotation to be generated ``` {line-numbers=on,starting-line-number=32} ``` See https://leanpub.com/help/manual#leanpub-auto-code.