There is no _inludes folder

[BeastyBlacksmith]

make lesson-check errors with

FileNotFoundError: [Errno 2] No such file or directory: '_includes/links.md'
make: *** [Makefile:135: lesson-check] Fehler 1

What should go in there?

[tobyhodges]

Sorry this was an error in the repository template used to create this repo. It can be fixed by adding a duplicate here of the _includes/links.md file in that template repository. Let me know if you would like me to put in a Pull Request for this.

Once this file is in the repo, you can use it to keep all your link references in a single location, adding {% include links.md %} at the end of every episode.

[fmichonneau]

This comes from a bug (carpentries/styles#570) in the lesson-check script that didn't take into account remote themes (as used in The Carpentries Incubator currently). I'll submit a PR.