updated readme with port setting instructions (thx vieux from #docker)
updated readme with port setting instructions (thx vieux from #docker)

vanloswang/shipyard,leominov/shipyard,scapewang/shipyard,vanloswang/shipyard,scapewang/shipyard,wujingke/shipyard,OnePaaS/shipyard,rockzeng/shipyard,beyondblog/shipyard,scapewang/shipyard,leominov/shipyard,dockerclubgroup/shipyard,rbramwell/shipyard,beyondblog/shipyard,LongTaiJun/DockerUI,eedevops/shipyard,wujingke/shipyard,RustJason/shipyard,zhoffice/shipyard,linecheng/shipyard,jsyinwenjun/shipyard,eedevops/shipyard,rbramwell/shipyard,daququ/shipyard,Dumbear/shipyard,dockerclubgroup/shipyard,bkcsoft/shipyard,zhiwei55/shipyard,daququ/shipyard,beyondblog/shipyard,bkcsoft/shipyard,tombee/shipyard,Lev09/shipyard,swege/shipyard,zhiwei55/shipyard,svdata/shipyard,swege/shipyard,chenrui2014/shipyard,Lev09/shipyard,swege/shipyard,wujingke/shipyard,rockzeng/shipyard,dockerclubgroup/shipyard,linecheng/shipyard,rbramwell/shipyard,John-Lin/shipyard,RustJason/shipyard,tombee/shipyard,vanloswang/shipyard,rchicoli/shipyard,RustJason/shipyard,zhoffice/shipyard,golang-lib/shipyard,LongTaiJun/DockerUI,pugna0/shipyard,tombee/shipyard,iamjakob/shipyard,linecheng/shipyard,pugna0/shipyard,rchicoli/shipyard,eedevops/shipyard,leroy-chen/shipyard,John-Lin/shipyard,LongTaiJun/DockerUI,iamjakob/shipyard,tombee/shipyard,rchicoli/shipyard,iamjakob/shipyard,John-Lin/shipyard,ehazlett/shipyard,Lev09/shipyard,Dumbear/shipyard,svdata/shipyard,svdata/shipyard,jsyinwenjun/shipyard,iamjakob/shipyard,OnePaaS/shipyard,chenrui2014/shipyard,jsyinwenjun/shipyard,John-Lin/shipyard,bkcsoft/shipyard,leroy-chen/shipyard,vanloswang/shipyard,scapewang/shipyard,ehazlett/shipyard,eedevops/shipyard,RustJason/shipyard,zhoffice/shipyard,Lev09/shipyard,Dumbear/shipyard,bkcsoft/shipyard,LongTaiJun/DockerUI,Dumbear/shipyard,jsyinwenjun/shipyard,chenrui2014/shipyard,ehazlett/shipyard,daququ/shipyard,wujingke/shipyard,zhiwei55/shipyard,OnePaaS/shipyard,golang-lib/shipyard,zhoffice/shipyard,linecheng/shipyard,OnePaaS/shipyard,rbramwell/shipyard,leroy-chen/shipyard,ehazlett/shipyard,chenrui2014/shipyard,pugna0/shipyard,leominov/shipyard,swege/shipyard,rockzeng/shipyard,svdata/shipyard,zhiwei55/shipyard,pugna0/shipyard,dockerclubgroup/shipyard,leroy-chen/shipyard,beyondblog/shipyard,golang-lib/shipyard,rockzeng/shipyard,daququ/shipyard,rchicoli/shipyard,golang-lib/shipyard,leominov/shipyard