Added note about multiple containers
Added note about multiple containers

jbeda/itzg-dockerfiles,zerocoolys/dockerfiles-1,sekka1/dockerfiles,jbeda/itzg-dockerfiles,sekka1/dockerfiles,itzg/dockerfiles,ajthemacboy/dockerfiles,sekka1/dockerfiles,zerocoolys/dockerfiles-1,jbeda/itzg-dockerfiles,zerocoolys/dockerfiles-1