Create educational Jupyter notebooks

[namurphy]

Jupyter notebooks are a great way to use Python to introduce educational concepts. For example, PlasmaPy has a gallery of example notebooks, including a few that use plasmapy.formulary that introduce plasma beta in the solar atmosphere and length scales for reconnection in Earth's magnetosphere.

It would be great to add more educational notebooks using plasmapy.particles, plasmapy.formulary, and other packages in the scientific pythoniverse. If you interested in creating such a notebook, please mention your idea below and/or link to this issue in a pull request (by typing out #61). If you have an idea for a notebook, please feel free to mention it below or to create a new issue.

Thank you!