Course development

These changes can be considered for future round: * Improve the the lecture notes. * The ALW can be reconsidered, or changed in setup * Rework the Estrada index problem and explanation (last exercise). Maybe an additional video. * Mention the learning aspect of "summarizing in your own words" * More template code also for Julia * Restructure the CANVAS page * The timing of some of the quizzes can be improved. * The AI rules can be exemplified further and always ask to explain in words how it was used. * Possibility that needs further investigation: A different meeting / activity which reconnects peer review and ALW and exercises. Maybe a seminar.