Add extra documentation to help users get started with Kubernetes examples

[briancain]

Is your feature request related to a problem? Please describe.

We have a handful of kubernetes examples but they don't explain the environment needed to set it up and try it out.

Describe the example scenario you wish to be included

Write a quick README in the kubernetes folder that gives some examples on how to set up a k8s environment and what might be needed to use the example. Mostly just link to existing docs and guides to help users get started.