hardware parameters in the large K8s cluster

* Kubelet parameters
```
maxPods: 110
rotateCertificates: true
kubeReserved:
cpu: 200m
memory: 250Mi
systemReserved:
cpu: 200m
memory: 250Mi
evictionHard:
memory.available: 5%
evictionSoft:
memory.available: 10%
evictionSoftGracePeriod:
memory.available: 2m
evictionMaxPodGracePeriod: 120
evictionPressureTransitionPeriod: 30s
```

* Etcd parameters, refer to [etcd](https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/hardware.md)

Start with the Kubelet parameter block in this issue and review the linked etcd hardware guide. Identify where the large-cluster hardware guidance belongs in the community repository; done means the relevant Kubelet and etcd parameters are documented with their intended context.

Written by the indexing model from the issue text.