Updated readme for 2.0.0
Updated readme for 2.0.0

stof/KnpMenu,KnpLabs/KnpMenu,Nek-/KnpMenu,stof/KnpMenu,zbigniewcichanski/KnpMenu,Soullivaneuh/KnpMenu,zbigniewcichanski/KnpMenu,Soullivaneuh/KnpMenu,xabbuh/KnpMenu,Nek-/KnpMenu,xabbuh/KnpMenu