Update 02. Quick Start.md
Update 02. Quick Start.md

Explanations about  the 'AuthenticationService' can be a little bit misleading.
svycka/zfc-rbac,ZF-Commons/zfc-rbac,svycka/zfc-rbac,Orkin/zfc-rbac,Alexandre-T/zfc-rbac,bakura10/zfc-rbac,Orkin/zfc-rbac,Alexandre-T/zfc-rbac,ZF-Commons/zfc-rbac,bakura10/zfc-rbac