message: Add note on common setup issue with root certificates to Python documentation.
diff: @@ -17,6 +17,12 @@ Currently, this includes binary wheels for:
  * Linux: Python 3.7, Python 3.8
  * MacOs: Python 3.7, Python 3.8
  +### Common setup issues
  +
  +* If you get an error regarding the root certs when using the GCP KMS
  + integration, you will have to install the
  + [root certs](https://github.com/googleapis/google-cloud-cpp/blob/master/google/cloud/bigtable/examples/README.md#configure-grpc-root-certificates).
  +
  ## Building from source
  Tink currently supports two build systems for the use with Python:
  