If you want to use an automated system for managing links, see Automated Links. This approach automatically creates a list of Markdown references to simplify linking.
But on the Links page there is only Create an external link and Linking to internal pages so the anchor #automatedlinks is leading nowhere.
In the Markdown section you say kramdown doesn't support autolink. So just after there is the [Automated links](https://idratherbewriting.com/documentation-theme-jekyll/index.html#markdown] section where there is
But on the Links page there is only
Create an external link
andLinking to internal pages
so the anchor#automatedlinks
is leading nowhere.