reading chapter, add discussion of `on_bad_lines="skip"`

[lheagy]

In the tutorial for classification 1, we have students use the pd.read_csv function with the keyword argument on_bad_lines="skip" to have students read in the file: https://archive.ics.uci.edu/ml/machine-learning-databases/00236/seeds_dataset.txt

Currently, we don't discuss this anywhere in the textbook. It would be good to add a short mention in the reading chapter