[Feature]: note `networkPolicy` objects that use port numbers rather than names.

[jcpunk]

Is your feature request related to a problem? Please describe.
When matching networkPolicy to a service, it is easy to use a port number, but a named port is more scalable.

Describe the solution you'd like
Like with liveness and readiness probes, note use of explicit ports rather than names.

Describe alternatives you've considered
Checking by hand

Additional context
https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.35/#networkpolicyport-v1-networking-k8s-io