in Quickstart for Cloud Images: revise intro for clarity and most importantly to omit reference to creating images. Cat Lookabaugh, Information Developer for Cloud Images, says in https://jira.rax.io/browse/DEVDOC-94: There IS a create image operation, but we do not implement it and it is not documented in any of our guides.
in Quickstart for Cloud Images: move from Use API into Concepts section, image entities, image identifiers, common properties. These provide background info but do not describe API operations
in Quickstart for Cloud Images: add definition for image member, since its necessary for understanding sharing operations; alphabetize list of concepts; improve text introducing operations