(document
:title [challenge-bot]
(chapter
- :title [mechanical]))
+ :title [mechanical]
+ (section
+ :title [arduino])
+ (section
+ :title [battery packs])
+ (section
+ :title [motors])
+ (section
+ :title [wheels])
+ (section
+ :title [caster])
+ (section
+ :title [sonars]))
+ (chapter
+ :title [wiring and software]))
;; Copyright 2016 daniel watson