docs: Fixed summary fragment and removed typo am: 8167356f am: 1d0ed15b...

docs: Fixed summary fragment and removed typo am: 8167356f am: 1d0ed15b am: a73ffd40 am: d1282298

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20835757



Change-Id: I889f95f5b42386b487cf6a2c1b43f1ce2f29d65c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>