- Replaces references to `code` to `src`
- Adds language attributes to fenced code blocks
- Updates output of `setup.cfg` in notebook 2.
- Fixes spelling and grammar errors
There was an issue with static assets not being properly copied in
the sphinx documentation. The assets have now been moved to
`_static` to ensure that sphinx is able to copy them during build.
The Jupyter notebooks use the images from `_static`.
