• First iteration: without any description, just code
• Afterwards, add the descriptions of the tutorials

Preferred workflow: For the first iteration: - Main branch: !141 (merged) (branch 113-first-iteration-on-creating-the-octopus-tutorials-with-postopus) - For every new notebook (group) open an issue and a MR pointing to 113-first-iteration-on-creating-the-octopus-tutorials-with-postopus. Ideally coupled with jupytext. - When all the tutorials are pushed to branch 113, then add the descriptions of the tutorials into a new main branch, same procedure as above.