[gemspec] updated gem homepage
[gemspec] updated gem homepage

somic/sensu,rbramwell/sensu,keymone/sensu,pauloconnor/sensu,yonglehou/sensu,crewton/sensu,miyakawataku/sensu,roobert/sensu,upfluence/sensu,withnale/sensu,cread/sensu,m4ce/sensu,portertech/sensu,bf4/sensu,solarkennedy/sensu,npe9/sensu,sensu/sensu