website: Add Kubeflow AI Policy

[szaher]

Description of Changes

As discussed during the community meeting, I am raising this PR to introduce the kubeflow AI Policy.

Related Issues

Closes: #

Related: #

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• You have signed off your commits
• Ensure you follow best practices from our contributing guide.
• (for big changes) I will post screenshots of the changes in a PR comment

[google-oss-prow]

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• content/en/docs/about/OWNERS

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[szaher]

@kubeflow/kubeflow-steering-committee @kubeflow/kubeflow-notebooks-security @kubeflow/kubeflow-hub-team @kubeflow/kubeflow-kale-team @kubeflow/wg-training-leads @kubeflow/wg-notebooks-leads @kubeflow/wg-automl-leads

[szaher]

I have removed the original one and replaced it with a short message for the website. please take a look
cc: @juliusvonkohout @christian-heusel @andreyvelich @thesuperzapper