rtd theme
Squashed 'docs/_themes/sphinx_rtd_theme/' content from commit 58098e0

git-subtree-dir: docs/_themes/sphinx_rtd_theme
git-subtree-split: 58098e01699436be099d79e058caaa30abc07e8e
Merge commit 'c4e590e1053b5d5d485984e97bbf8875a7f31f9d' as 'docs/_themes/sphinx_rtd_theme'
switch to rtd theme
improve text
update docstrings
change theme
add classes
update docstrings
added html_context
added integrate
start sketching out integrate docs
update docstrings with examples
integrate docs