fix bug, install manifest will auto install trainerv2.0.1 ,not the V1(version list and url is wrong now)

[yiminghub2024]

fix bug, install manifest will auto install trainerv2.0.1 ,not the V1

Pull Request Template for Kubeflow Manifests

✏️ Summary of Changes

update trainer description and v2.0.1 url in Readme.MD

📦 Dependencies

List any dependencies or related PRs (e.g., "Depends on #123").

🐛 Related Issues

Link any issues that are resolved or affected by this PR.

✅ Contributor Checklist

• I have tested these changes with kustomize. See Installation Prerequisites.
• All commits are signed-off to satisfy the DCO check.
• I have considered adding my company to the adopters page to support Kubeflow and help the community, since I expect help from the community for my issue (see 1. and 2.).

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