Don't spoil exercise solutions

[andreas-zeller]

From the "Security Testing" WS 2023/24 Course:

I have recently begun to examine the material, and I am particularly interested in the concept of a flipped classroom. However, I have found it somewhat irritating that the solutions are displayed directly in the notebooks when using them locally.

A brief search led me to the following discussion, in which someone suggested a way to create a spoiler within a notebook: https://discourse.jupyter.org/t/hiding-spoilers-answers-cells/4252

I believe that this would be a valuable addition to the material, and I would suggest that it be considered for inclusion on the bucket list.