am 62472581: Merge "cherrypick from master - add overview description for RS API reference Change-Id: Id5554c607ad4c435f92bfa939e4ce4833a638f62" into ics-mr1

* commit '62472581c30a3202b7bbd86e644b4346d5a4e65c':
  cherrypick from master - add overview description for RS API reference Change-Id: Id5554c607ad4c435f92bfa939e4ce4833a638f62