Changed ray README.md

[hansinikarunarathne]

Pull Request Template for Kubeflow manifests Issues

✏️ A brief description of the changes

I changed create namespace of ray cluster README.md

✅ Contributor checklist

• Make sure you have tested with kustomize. See Installation Prerequisites
• All the commits have been signed-off (To pass the DCO check)

---

You can join the CNCF Slack and access our meetings at the Kubeflow Community website. Our channel on the CNCF Slack is here #kubeflow-platform.

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[hansinikarunarathne]

@juliusvonkohout I made the requested change.

[juliusvonkohout]

Hello, I see the v1.7 branch mentioned in a lot of places. Please do a thorough check of the readme.

[hansinikarunarathne]

Hello, I see the v1.7 branch mentioned in a lot of places. Please do a thorough check of the readme.

Can you explain it more? I can not understand what you mean

[juliusvonkohout]

For example there is

manifests/contrib/ray/README.md

Line 38 in fd32075

## Step 1: Install Kubeflow v1.7-branch

manifests/contrib/ray/README.md

Line 41 in fd32075

* Install all Kubeflow official components and all common services using [one command](https://github.com/kubeflow/manifests/tree/v1.7-branch#install-with-a-single-command).

and many more.

Sometimes it also talks about 1.9. I would rather go for the master branch in all places.

So just a general cleanup / renovation of the documentation.

[juliusvonkohout]

Also https://github.com/kubeflow/manifests/blob/master/contrib/ray/kuberay-operator/base/kustomization.yaml should be updated to be a proper kustomization file as the other ones

I think the ordering is different from other kustomization files and it is missing

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization

[juliusvonkohout]

To be continued after December 10 by @hansinikarunarathne

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