Add a note to the section 5.2.1.3 (where the different types of CapabilityStatement are described) that says that: CapabilityStatements of type "requirement" describe what capabilities are potentially relevant, additional documentation or extensions (<add reference to existing extension>) within the CapStat are expected to make more explicit statements of degree of expectation associated with each capability. Add an example of a requirement capabilitystatement that uses the extension.