SEO plugin used

[klokan]

GitHub pages now contains SEO plugin for Jekyll.

We should use it (together with the Sitemap plugin) in this skeleton - and also, in our own websites and blog posts.

https://github.com/blog/2162-better-discoverability-for-github-pages-sites
https://github.com/jekyll/jekyll-seo-tag#usage

[klokan]

For proper testing of GitHub Pages there is this nice docker image:

https://hub.docker.com/r/starefossen/github-pages/
https://github.com/Starefossen/docker-github-pages

It is 1:1 for all the plugins available on GitHub Pages officially:
https://pages.github.com/versions/

because it uses the official GitHub Pages GEM:
https://github.com/github/pages-gem