Add Jupyter notebook examples / autometa code snippets

[evanroyrees]

I think it may be helpful to throw an example into Jupyter notebook and link to it (or https://docs.readthedocs.io/en/stable/guides/jupyter.html)
Especially since the tutorial jumps around between running things on command line and python

• Benchmarking Example
• Exploring a metagenome/binning using Autometa imports

Additional code snippets could be added using the autometa api located on autometa.readthedocs.io under Autometa python API

• Quickly determining a set of contigs' bin metrics
• Quickly retrieving a set of taxids lineages (including both canonical and non-canonical ranks)
• Some parameter sweep workflows regarding kmers or binning (maybe tying in benchmarking from above?)

Originally posted by @chasemc in #189 (comment)