[#138219011] adding guidance on how to make docker bits offline
[#138219011] adding guidance on how to make docker bits offline

sandyg1/pcf-pipelines,BrianMMcClain/pcf-pipelines,beibeiyang/pcf-pipelines,cah-josephgeorge/pcf-pipelines,pivotal-cf/pcf-pipelines,sandyg1/pcf-pipelines,rahulkj/pcf-pipelines,pvsone/pcf-pipelines,cah-josephgeorge/pcf-pipelines,rahulkj/pcf-pipelines,beibeiyang/pcf-pipelines,sandyg1/pcf-pipelines,sandyg1/pcf-pipelines,BrianMMcClain/pcf-pipelines,rahulkj/pcf-pipelines,rahulkj/pcf-pipelines,pvsone/pcf-pipelines,pivotal-cf/pcf-pipelines,mcb/pcf-pipelines,mcb/pcf-pipelines,mcb/pcf-pipelines,pvsone/pcf-pipelines,pivotal-cf/pcf-pipelines,cah-josephgeorge/pcf-pipelines,pivotal-cf/pcf-pipelines