Create How to Swap Variables Jupyter Notebook

[jrg94]

Add solutions from this article to a Jupyter notebook: https://therenegadecoder.com/code/how-to-swap-variables-in-python/

See here for an example: https://colab.research.google.com/github/TheRenegadeCoder/how-to-python-code/blob/master/notebooks/how_to_write_a_loop.ipynb