Add demo ubuntu container
Add demo ubuntu container

rancherio/cattle,wlan0/cattle,kaos/cattle,cjellick/cattle,gpndata/cattle,dx9/cattle,willseward/cattle,wlan0/cattle,sonchang/cattle,vincent99/cattle,ubiquityhosting/rancher_cattle,alena1108/cattle,jimengliu/cattle,ubiquityhosting/rancher_cattle,yasker/cattle,gpndata/cattle,alena1108/cattle,cloudnautique/cattle,cloudnautique/cloud-cattle,cjellick/cattle,imikushin/cattle,jimengliu/cattle,cjellick/cattle,OnePaaS/cattle,kaos/cattle,sonchang/cattle,jimengliu/cattle,prachidamle/cattle,rancher/cattle,rancher/cattle,vincent99/cattle,Cerfoglg/cattle,hibooboo2/cattle,OnePaaS/cattle,cloudnautique/cattle,ubiquityhosting/rancher_cattle,alena1108/cattle,sonchang/cattle,stresler/cattle,gpndata/cattle,willseward/cattle,stresler/cattle,hibooboo2/cattle,OnePaaS/cattle,Cerfoglg/cattle,Cerfoglg/cattle,ubiquityhosting/rancher_cattle,vincent99/cattle,prachidamle/cattle,cloudnautique/cloud-cattle,gpndata/cattle,prachidamle/cattle,cloudnautique/cloud-cattle,OnePaaS/cattle,hibooboo2/cattle,imikushin/cattle,yasker/cattle,willseward/cattle,dx9/cattle,yasker/cattle,rancherio/cattle,kaos/cattle,cloudnautique/cattle,cloudnautique/cloud-cattle,rancher/cattle,sonchang/cattle,imikushin/cattle,willseward/cattle,cjellick/cattle,stresler/cattle,rancherio/cattle,cloudnautique/cattle,wlan0/cattle,prachidamle/cattle,imikushin/cattle,dx9/cattle,dx9/cattle