Minor README tweak to be less Redis-focused [ci skip]
Minor README tweak to be less Redis-focused [ci skip]

cannikin/message_bus,MadBomber/message_bus,nathanstitt/message_bus,nathanstitt/message_bus,cannikin/message_bus,MadBomber/message_bus,SamSaffron/message_bus,nathanstitt/message_bus,cannikin/message_bus,MadBomber/message_bus,SamSaffron/message_bus