Update runner and context sections of concept
Update runner and context sections of concept

TrivialFix

Change-Id: I6c5a7af145bcd4859ce163e9b61564c7d6e1b2b5

yeming233/rally,openstack/rally,vganapath/rally,amit0701/rally,gluke77/rally,eayunstack/rally,gluke77/rally,amit0701/rally,vganapath/rally,openstack/rally,eayunstack/rally,yeming233/rally,vganapath/rally,gluke77/rally,eonpatapon/rally,eonpatapon/rally,amit0701/rally,gluke77/rally,eayunstack/rally,openstack/rally,vganapath/rally,openstack/rally