Description:

This is a Quay documentation issue found when use Quay Operator to deploy Quay, as officially Quay support use Postgresql and Mysql as Quay's database, but Quay Operator doesn't support to configure to use existing Customer's own Mysql Database in Quay CR file, so Quay Documents need to be improved to provide guide to give customer instructions how to configure quay to use mysql database, including steps "setup Quay Database Schemas", "Update quay config.yaml", etc.

Note: this doc issue is filed to track doc improvement in https://issues.redhat.com/browse/PROJQUAY-1071