Issue description

In the guided excercise: install operators with the CLI I found that in the video at 3:10, the source which is referred to in the subscription.yaml is 'do280-catalog-redhat', where it should be 'do280-catalog-cs', which is present in the openshift-marketplace namespace and is also referred to in the PackageManifest of the file-integrity-operator. I've added some screenshots.

In the text, the reference is correctly set to 'do280-catalog-cs'.