Finding working pod network manifest, for cluster creation, during the exam from kuberenetes.io/docs

For the life of me, I can't find a manifest to a pod network provider manifest referenced on kubenetes.io/docs page. e.g. weavenet, calico, etc (e.g. just after creating a cluster with kubeadm) I need a link with kubectl apply -f manifest url. The docs I found point directly to external pages.

I'm not supposed to browse off kubernetes.io to get the manifests, so I'm not sure what to do when I get to that step. Can anyone provide a very detailed pointer to where i can find a command (e.g. kubectl apply -f http://weave.io/manifest.yaml ) linked off kubernetes.io page?

Or is there a flag in kubeadm that does that automatically that I'm missing?

I've looked all around and I can't seem to find it. Maybe it's hidden in a tab or something?
I don't want to get lost during the exam.
https://kubernetes.io/docs/tasks/administer-cluster/network-policy-provider

Thanks!