add github link of source tree to deploygate message
add github link of source tree to deploygate message

cutmail/droidkaigi2016,zaki50/droidkaigi2016,takahirom/droidkaigi2016,konifar/conference-sched,cafedeaqua/droidkaigi2016,PriteshJain/rubyconfindia2016,konifar/droidkaigi2016,operando/droidkaigi2016,sys1yagi/droidkaigi2016,cafedeaqua/droidkaigi2016,operando/droidkaigi2016,cutmail/droidkaigi2016,shaunkawano/droidkaigi2016,PriteshJain/rubyconfindia2016,zaki50/droidkaigi2016,konifar/droidkaigi2016,shaunkawano/droidkaigi2016,konifar/conference-sched,sys1yagi/droidkaigi2016,takahirom/droidkaigi2016