Merge "Remind the reader that they'll need to modify CTS too." into main am: 293b394508 am: 03f6896b3f

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3262151

Change-Id: I057093a30409ef7dbc530a9b17a0751be9bfa041
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>