kubeflow registry not found

[pingsutw]

ks registry add kubeflow github.com/kubeflow/kubeflow/tree/master/kubeflow
Error messgaes

ERROR validating registry URL: validating GitHub registry URL: "https://github.com/kubeflow/kubeflow/tree/master/kubeflow/registry.yaml" actual 404; expected 200 

We should use a specific version of kubeflow

[pingsutw]

/cc @xyhuang

[xyhuang]

as ksonnet is reaching EOL we are no longer using it for the deployment. we are aware that the doc is out of date and no longer work with the current kubeflow. sorry for the inconvenience as we work through the changes in kubeflow. we expect to update the doc and project in the near future.