Episode 3.4 todo notes visible to learners

https://github.com/carpentries-incubator/python-intermediate-development/blob/3035eaf7d63720b310eba097da9b7dffb7ee1309/episodes/34-code-refactoring.md?plain=1#L332-L333

Could we make the "(?..)" notes not visible in the learner view, or not visible in the rendered view at all?

Open episodes/34-code-refactoring.md at lines 332-333 and inspect how the "(?..)" notes are represented in the source and learner-rendered view. Check the lesson’s rendering or preview workflow, then confirm the notes no longer appear to learners while the surrounding episode content remains intact.

Vom Indexierungsmodell aus dem Issue-Text verfasst.