Update docs after building Travis build 1181 of regro/regolith
Update docs after building Travis build 1181 of
regro/regolith

The docs were built from the branch 'master' against the commit
b02e8539376f92da395eda1429172af9494fa7f2.

The Travis build that generated this commit is at
https://travis-ci.org/regro/regolith/jobs/698853715.

The doctr command that was run is

    /home/travis/miniconda/envs/test/bin/doctr deploy . --deploy-repo ergs/regolith-docs --built-docs ./docs/_build/html

scopatz/regolith-docs,scopatz/regolith-docs