A handy dandy guide for Rancher Labs' assets and styles
cd ~/your-copy-of/brand-guidelines
docker run --name=brand-guidelines -it -p 4000:4000 -v $PWD:/srv/jekyll -it jekyll/jekyll jekyll serve
Visit http://localhost:4000 . First start-up will take a few minutes to install things, you can monitor progress with
docker logs -f --tail=100 brand-guidelines