Fix writers format in conf sample in realtime monitoring page, close #2590
Fix writers format in conf sample in realtime monitoring page, close #2590

thkluge/gatling,ryez/gatling,GabrielPlassard/gatling,thkluge/gatling,gatling/gatling,gatling/gatling,GabrielPlassard/gatling,wiacekm/gatling,MykolaB/gatling,thkluge/gatling,timve/gatling,timve/gatling,ryez/gatling,pwielgolaski/gatling,gatling/gatling,thkluge/gatling,pwielgolaski/gatling,wiacekm/gatling,pwielgolaski/gatling,MykolaB/gatling,gatling/gatling,MykolaB/gatling,gatling/gatling,ryez/gatling,wiacekm/gatling,MykolaB/gatling,timve/gatling,GabrielPlassard/gatling,timve/gatling,wiacekm/gatling,GabrielPlassard/gatling,ryez/gatling,pwielgolaski/gatling,wiacekm/gatling