docs: fixed typo/grammar issues.
docs: fixed typo/grammar issues.

Bug: 17764345
Change-Id: I0017ba9ce592951ac3ce6f976d7ad1bc0c45f25f

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base