Update README and pyproject.toml. am: 4576977c62 Original change: https://android-review.googlesource.com/c/platform/tools/rr_prebuilt/+/2768236 Change-Id: I1e3faaf9d51d4e34bc1caa49b3cc8d09c92a46f7 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>