Add notebook example

[jennyfothergill]

fixes #27

• need CI to check that the notebook is working
• need to add markdown explanations

How should we handle the extra dependencies needed for visualizing/notebooks? I'm hesitant to add them to the container. I guess another container?

What all should the notebook demonstrate? Current ideas:

• verify that the final density is the density we specify
• demonstrate what e factor does

[codecov]

Codecov Report

Merging #35 (e9c71a9) into master (9062162) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #35   +/-   ##
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  Coverage   98.78%   98.78%           
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  Files           5        5           
  Lines         165      165           
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  Hits          163      163           
  Misses          2        2           

[review-notebook-app]

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[chrisjonesBSU]

Closing since this is outdated with the upcoming change to hoomd3. I'll keep the issue open