'No guarantee of order' section in dictionaries notebook

[matt-graham]

The 01-beginner/028dictionaries.ipynb notebook currently has the following example

No guarantee of order

Another consequence of the way dictionaries work is that there's no guaranteed order among the elements:

my_dict = {"0": 0, "1": 1, "2": 2, "3": 3, "4": 4}
print(my_dict)
print(my_dict.values())

which is not correct for Python 3.7+ which guarantees that dictionaries retain insertion order. We should either remove this example entirely or perhaps create a similar example for sets for which this behaviour still applies.