Merge "Update documentation" into udc-dev am: 565611aaee

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22121450

Change-Id: I629334a1a9e6fbebfb13889a306a18ab5e2eaa5e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>