am 0a40f2d4: am 23b4e5b1: Merge "Doc change: add SMP Primer for Android. Support a new "article" toc style in training." into jb-mr1-dev

* commit '0a40f2d4d28d99a6cd1216f3aa47cb10d6b905cc':
  Doc change: add SMP Primer for Android. Support a new "article" toc style in training.