Fix Graphite request metric path documentation, close #2278
Fix Graphite request metric path documentation, close #2278

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