https://pagure.io/centos-infra/issue/1541

The new website is in the `revamp` branch here:

https://git.centos.org/centos/centos.org/tree/revamp

I'd like to get some CD set up to publish to something like www-new.centos.org, so we can preview the work. Then when it's ready, it should be a simple switchover. I'm able to build with just: `bundler exec jekyll build`. (I might have had to chase some deps. I should have written that down.)