+[kramdown]: https://kramdown.gettalong.org/
+[lc-lessons]: https://librarycarpentry.org/lessons/
+[lesson-aio]: {{ relative_root_path }}{% link aio.md %}
+[lesson-coc]: {{ relative_root_path }}{% link CODE_OF_CONDUCT.md %}
+[lesson-example]: https://carpentries.github.io/lesson-example/
+[lesson-license]: {{ relative_root_path }}{% link LICENSE.md %}
+[lesson-mainpage]: {{ relative_root_path }}{% link index.md %}
+[lesson-reference]: {{ relative_root_path }}{% link reference.md %}
+[lesson-setup]: {{ relative_root_path }}{% link setup.md %}
+[mit-license]: https://opensource.org/licenses/mit-license.html
+[apache-license]: https://opensource.org/licenses/Apache-2.0