Add quick start instructions. (+1 squashed commit)
[388f799] Add detail view
[acb8704] Fix: assign the image to the listing on success
[eea59bc] Requesting images async
[a08a872] Implemente SearchBar delegate
[3387cb7] Added new Controller with Collection View, Search Bar, etc and a custom item view.
Finally got the constraints right.
[2a43070] Add search bar into a navigation controller