Updated README
Updated README

Nuzzel/SimulatorRemoteNotifications,sexyflash/SimulatorRemoteNotifications,vuchau/SimulatorRemoteNotifications,shekhargupta/SimulatorRemoteNotifications,kerou/SimulatorRemoteNotifications,JinlianWang/SimulatorRemoteNotifications,kirualex/SimulatorRemoteNotifications,acoomans/SimulatorRemoteNotifications