Update url for Kustomize docs (#1065)
Update url for Kustomize docs (#1065)

Signed-off-by: Jessica Stenning <c7b75079430166e4ebf34f420cb7b84fcd25e5e6@hotmail.co.uk>

Co-authored-by: Rita Zhang <011b71a2d041f8690750f6af12d01fdf9db1e741@gmail.com>
open-policy-agent/gatekeeper,open-policy-agent/gatekeeper,open-policy-agent/gatekeeper,open-policy-agent/gatekeeper,open-policy-agent/gatekeeper