The Basics: how to get kubectl, kubeconfigs, export env vars

[ryanj]

Add a general getting started section to help guide users from diy to pods.

This page should:

• provide clear information on how to connect to the cluster (kubeconfig) kubectl proxy in API server access #41, Services page mentions iptables, but it's not easy to access #60
• provide clear information on how to download kubectl and how to add it to your $PATH
• establish a consistent namespace for running experiments Inconsistent domain names for service discovery #21
• work in coordination with Example commands should be portable #63 to help resolve: [kubectl proxy in API server access #41, Inconsistent domain names for service discovery #21, Services page mentions iptables, but it's not easy to access #60, Example suited Kubernetes environment unclear #26]

Also:

• Should provide information regarding the date, time, and k8s API version that was used to validate the content Example suited Kubernetes environment unclear #26