change docker version in the README
change docker version in the README

insequent/kargo,rogerwelin/kargo,kubernetes-incubator/kargo,kubernetes-incubator/kubespray,hatch-k8s/kargo,hatch-k8s/kargo,kubernetes-incubator/kargo,Lendico/kargo,Atoms/kubespray,kubernetes-incubator/kubespray,Lendico/kargo,kubespray/kargo,kubernetes-sigs/kubespray,sgm-media/kargo,Smana/setup-kubernetes,insequent/kargo,galthaus/setup-kubernetes,Atoms/kubespray,Atoms/kubespray,ayaz/kubespray,galthaus/setup-kubernetes,jcsirot/kubespray,jonbec/kargo,kubernetes-sigs/kubespray,Abdelsalam-Abbas/kubespray_fork,VincentS/kargo,kubespray/kargo,kubernetes-sigs/kubespray,VincentS/kargo,jonbec/kargo,Abdelsalam-Abbas/kubespray_fork,sgm-media/kargo,kubernetes-sigs/kubespray,ayaz/kubespray,rogerwelin/kargo,jcsirot/kubespray,Atoms/kubespray,Smana/setup-kubernetes