reuven/pandas-workout — reverse-engineered prompt

I want this turned into a clean, easy to use workbook repo for the Pandas Workout book. Keep the chapter by chapter notebook structure, and make sure someone can clone it, get the exercise data from the separate zip file, unpack it, and start working through the notebooks without path issues or missing files.

Please set things up so the notebooks feel polished and beginner friendly. If any chapters need small fixes so they run smoothly in a normal Jupyter setup, make those. Add a simple getting started guide that explains how to open the notebooks, where the data goes, and how to work through the exercises in order. If it helps, include a tiny setup helper so downloading and placing the data is easy.

The main goal is that this feels like a ready to use companion repo for the book, not just a loose folder of notebooks. Look up current docs online if you need to.