Fix comma in announcments schema
Fix comma in announcments schema

gregcarlin/signmeup,gregcarlin/signmeup,etremel/signmeup,signmeup/signmeup,athyuttamre/signmeup,etremel/signmeup,etremel/signmeup,signmeup/signmeup,athyuttamre/signmeup,gregcarlin/signmeup