Add WG leads to docs approvers

[pierDipi]

Every time there is a new page added, I cannot approve PRs (example #5916), so I'm adding WG leads to the top-level directory approvers

[knative-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: pierDipi
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[pierDipi]

/cc @knative/technical-oversight-committee

[pierDipi]

/assign @knative/technical-oversight-committee

[Cali0707]

+1 from me!

/lgtm

[psschwei]

If the issue is approving page changes, would it make sense to add the working group leads as owners on the config directory rather than for all of docs? Though given that there's no docs team right now, perhaps it's better to have more folks able to approve for the whole repo?

[dprotaso]

If the issue is approving page changes, would it make sense to add the working group leads as owners on the config directory rather than for all of docs? Though given that there's no docs team right now, perhaps it's better to have more folks able to approve for the whole repo?

Yeah - let's subdivide the owners to the various sections