The section on how to install from CLI is missing information    

   1.5

    Always

    1. Follow the steps in Installing Builds by using the CLI 
    

The namespace openshift-builds doesn't exist by default, so the subscription creation will fail. In case it existed, the OperatorGroup is not part of the example and the subscription won't install the operator without it.

   The example includes the yaml files for the namespace and the operatorgroup.

apiVersion: v1
kind: Namespace
metadata:
  name: openshift-builds
---
apiVersion: operators.coreos.com/v1
kind: OperatorGroup
metadata:
  name: openshift-builds-operator
  namespace: openshift-builds
spec:
  upgradeStrategy: Default
---
apiVersion: operators.coreos.com/v1alpha1
kind: Subscription
metadata:
  name: openshift-builds-operator
  namespace: openshift-builds
spec:
  channel: latest
  name: openshift-builds-operator
  source: redhat-operators
  sourceNamespace: openshift-marketplace