Add User Management Scripts documentation

[choudhryfrompak]

Pull Request Template for Kubeflow manifests Issues

✏️ A brief description of the changes

I added documentation for User Management Scripts that i created for kubeflow local user creation. I have pushed it to the main README.md file. This new section provides information about advanced user management features for Kubeflow, including automated profile creation and deletion, Dex configuration management, local user registry, and customizable resource quotas. The documentation includes installation instructions and basic usage guidelines for these scripts.

📦 List any dependencies that are required for this change

This PR does not introduce any new dependencies. It only adds documentation to the existing README.md file.

🐛 If this PR is related to an issue, please put the link to the issue here.

This PR is not directly related to any existing issue. It aims to improve user management and documentation based on a community contribution.

✅ Contributor checklist

• Make sure you have tested with kustomize. See Installation Prerequisites
  • This PR only modifies documentation and does not affect kustomize configurations.
• All the commits have been signed-off (To pass the DCO check)
  • I confirm that I have signed off all commits in this PR.

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[choudhryfrompak]

This pull request is related to a recent pull request from this account. Following the guidelines provided by @juliusvonkohout

[juliusvonkohout]

Hello, we will not link to the scripts in your private repository. We will also not add stuff that is a large maintenance burden. You should instead use a proper oidc provider with DEX as mentioned before.

[choudhryfrompak]

@juliusvonkohout This is an optional add-on or plugin designed for users deploying Kubeflow on-premise within an organization. We are also utilizing it within our own organization. It facilitates the local creation of user accounts for team members in such environments.

While your reasoning is valid, I have decided to maintain it as a separate repository to keep things organized.

Thank you for your consideration.

[juliusvonkohout]

Do you want to work on Dex integration documentation then?

[choudhryfrompak]

Yes, i will document the process after implementation at our Datacenter.

[juliusvonkohout]

superseded by #2911