Merge "Revise strings to up to date for tutorial improvement." into rvc-dev...
Merge "Revise strings to up to date for tutorial improvement." into rvc-dev am: a5a629c7 am: 3a9efed4 am: f72de7d1 am: 1572476b am: 9e21098f
Change-Id: If739ca291332d71f103069f080931227706fe871