Merge branch 'master' of...

Merge branch 'master' of https://gitlab.tudelft.nl/python-for-applied-physics/practicum-lecture-notes

.gitlab-ci.yml

@@ -3,6 +3,7 @@ outputs:
     - conda install jupytext -c conda-forge
   script:
     - "jupytext */Notebook*md Outline\\ of\\ notebooks.md --to notebook"
+    - "jupytext Additional*/*md --to notebook"
   artifacts:
     paths:
        - "*/Notebook*ipynb"
@@ -13,5 +14,6 @@ outputs:
        - "Notebook 5/v_vs_time.dat"
        - "Notebook 5/example2.dat"
        - "Outline of notebooks.ipynb"
-       - "Additional*/*"
+       - "Additional*/*ipynb"
+       - "Additional*/*png"
     name: Lecture_Notebooks