Releasing the Operator to OperatorHub.io

Prepare the Operator container image and the bundle manifests:

1. Edit the Makefile, and update the VERSION variable.
2. Edit the config/manifests/bases/quay-api-operator.clusterserviceversion.yaml file, and update the tag part of the image in .metadata.annotations.containerImage.
3. Build and push the Operator container image.
4. Create the bundle manifests by running the make bundle command.
5. Review the Packaging your Operator for OperatorHub documentation.
6. Follow the steps in the Contributing documentation.