am 14f77b4f: am 3c7e1f4a: am 0b315994: am 2acfc3b9: am d7476cf4: Merge "Doc change: Add play dev guide page with index card and shareable download." into lmp-dev

* commit '14f77b4ffb87f060a53859104ee83c365c0bd550':
  Doc change: Add play dev guide page with index card and shareable download.