Getting started requires significant download

[stsievert]

Here's the process for a new user to use this repo and run a result-level analysis.

1. Download the repo either via git clone or the ZIP file.
   1. Downloaded: 285MB.
2. Run the Jupyter notebook (e.g., docs/example-analyses/Possibly-funniest.ipynb]):
   1. Downloaded: 297MB + 1.28GB

That's not the easiest to get started, it requires a lot of download. How can this be reduced?