Auto generate the version-skew-policy.md file (https://kubernetes.io/docs/setup/version-skew-policy/), https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/#version-skew-policy

What would you like to be added
Auto generate the page based on some basic logic following the skew guidelines and the config.toml located at https://github.com/kubernetes/website/blob/master/config.toml#L80 (for the current release / previous). Include a short description about k/website supporting 5 versions and k/k supporting 3 versions (and calling those out). This page would be generated on build or updated with a hack/script (vs. manual edits)

Why is this needed
There has been requests from vendors to send customers a link that provides details about which releases are currently supported (be that because of an exception or any other reason). This request has be raised in many forums.

Comments
Build logical steps in the k/k release patch process to update our website vars with current minor patch release # in https://github.com/kubernetes/website/blob/master/config.toml#L80