Initial draft with UI changes

@gwprice and @mhoeber , this still needs changes to policy key settings/new images for the Studio changes that will be in tomorrow's release. Also, most of the paragraphs are not wrapped onto new lines, but I didn't want to distract from where I actually made changes. I'll do that later.
actually, that is a huge point. Revised to identify the Admins in Studio as well as the Instructors on the Instructor Dash as users who can grant these roles.