Your article should be included in the docs. It was exactly what I was looking for since I was struggling just to display navigation links on the page. Thank you for writing this guide. It was structured like the Jekyll quickstart guide and I really liked it for that reason.
Edit: I would be more happy, if you actually explained why partial css is better than linking to an external css file. And also why PublishedDate is the best of the both worlds. Or maybe they are explained in the docs and I just exposed my ignorance 