Updated the doc about events per the proofreading
Updated the doc about events per the proofreading

benji07/KnpMenuBundle,Soullivaneuh/KnpMenuBundle,WouterJ/KnpMenuBundle,bocharsky-bw/KnpMenuBundle,stof/KnpMenuBundle,Soullivaneuh/KnpMenuBundle,javiereguiluz/KnpMenuBundle,Nek-/KnpMenuBundle,piotrantosik/KnpMenuBundle,KnpLabs/KnpMenuBundle