add readme for python3 numpy dockerfile
add readme for python3 numpy dockerfile

chrislovecnm/gpmr,chrislovecnm/gpmr,chrislovecnm/gpmr,chrislovecnm/gpmr,k8s-for-greeks/gpmr,chrislovecnm/gpmr,k8s-for-greeks/gpmr,k8s-for-greeks/gpmr,k8s-for-greeks/gpmr,k8s-for-greeks/gpmr