Customers have queried Cost Management regarding what data is collected from the operator.  We have pointed them to the queries file as a starting point.  It would be better if we write up a document that explains the data that is collected to ensure our customer's are informed and comfortable with onboarding their cluster to Cost Management

Docs entry examples from other operators: 

• https://github.com/openshift/cluster-monitoring-operator/blob/master/Documentation/data-collection.md
• https://github.com/openshift/insights-operator/blob/master/docs/gathered-data.md