This turns out to be trickier than it sounds due to GitHub Pages scrambling the URLs. The best solution seems to be as follows. Note that I created a new folder for my pdfs.

Use the syntax: [bird's notebook](/pdfs/00-is-it-a-bird-creating-a-model-from-your-own-data.pdf)

instead of [bird's notebook](/pdfs/00-is-it-a-bird-creating-a-model-from-your-own-data.pdf)

You can see this example in the previous post.

Happy GitHub Paging,

Brian