Docs say:
only our GFM processor will always match the results you see on GitHub
https://docs.github.com/en/pages/setting-up-a-github-pages-site-with-jekyll/about-github-pages-and-jekyll
I have a pages site configured with markdown: GFM but the way github renders my README.md is different than the jekyll generated page.
I reference a repository permalink in the markdown and github renders this inline in the page:
The jekyll generated site does not, it just renders the URL:
See https://github.com/rectalogic/pagetest