Node IP addresses inconsistent

[seantsandell]

Hello, great project. I got stuck for a minute later on in the docs, setting up the kubelets, etc, due to some IP addressing in the service config files. I referenced back to the first Infrastructure page of the guide, and the table showing IPs you're using for your controller and worker nodes don't match the IPs you add to the hosts files on those nodes. It looks like the service configs later in the guide might be more closely match the hosts file created in step 1 more-so than the table in the readme.