Of course AWS does not "run on CoreOS", so under "Running Kubernetes" the title should not be "AWS on CoreOS".
This is highly irritating when browsing the docs the first time.
The title should either be: "Kubernetes with AWS provider on CoreOS", or "CoreOS on AWS".
I picked the latter form, and fixed a couple of non-optimal titles in this fashion.
I also changed "Vagrant or VMware" to "CoreOS on Vagrant", because the article is mostly about CoreOS, including other platforms (btw. VMWare is just a Vagrant provider in this context).
Also note that there is a little navigation bug because the article "/docs/getting-started-guides/coreos/" is linked twice: when clicked, the other link is selected too in the navigation (under certain circumstances). It may make sense to split the article in 2 files: one about Vagrant only, one about AWS and GCE.
I removed the "libvirt or KVM" link, because the article is already linked under "On Bare Metal", where it fits better. It has nothing special to do with libvirt and KVM and doesn't mention any of both.
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