Automation for building / testing the site

[iranzo]

Hi,
Described at README there's a mention to generation via GHPages. In other projects we can see either their own CI/CD doing the builds or allowing 'travis-ci.org' 'free tier' to build and test and other services like netlify to 'render' the PR 'live'

For example: PR: Pelican-Elegant/elegant#448
'Rendered' preview: https://deploy-preview-448--pelicanelegant.netlify.com/

Travis build: https://travis-ci.org/Pelican-Elegant/elegant/builds/559242879?utm_source=github_status&utm_medium=notification

[lucperkins]

@iranzo There is currently an effort under way to use Netlify for the Rook site. I have it building properly here. We just need to tweak some knobs to get things switched over.