Copy edits for Upstream OpenStack chapter

Change-Id: Idf3d302f41dab8a115c44f0570351a8888f23d7e
Copyedits for lay of the land

Change-Id: Ib742c49a8522ddec1cb89768cd0b9a5774795952
Co-author: Stephen Gordon
Merge "Copyedits for lay of the land"
Merge "Copy edits for Upstream OpenStack chapter"