avvo/kubernetes-zookeeper repository overview

This is a light fork of the https://github.com/kow3ns/kubernetes-zookeeper⁠ repository that generates the k8s.gcr.io/kubernetes-zookeeper image referenced in https://kubernetes.io/docs/tutorials/stateful-application/zookeeper/⁠

We have forked it into an Avvo public GitHub repo and Avvo private Dockerhub repo so that we never need to worry about it disappearing under our feet.

See https://jira.internetbrands.com/browse/PLTF-1187⁠ for context about why we would want a reliable clustering Zookeeper Docker image.