Fix some readme and script bugs in examples (take 2).

All scripts (assuming they will work with those settings)...
On Sep 11, 2014 1:10 PM, "mbforbes" <notifications@github.com> wrote:

> In examples/update-demo/0-build-images.sh:
>
> > @@ -16,17 +16,15 @@
> >
> >  # This script will build and push the images necessary for the demo.
> >
>
> No worries---should I do this for all six scripts in this demo, or just
> this one?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/GoogleCloudPlatform/kubernetes/pull/1265/files#r17445418>
> .
>