Start linting doc/source/conf.py

Add `doc/source/conf.py` to the filelist for Black and Pylint.
Previously this file was not covered by any of the linters, so this
patch includes one-off sweeping changes for the formatting.

To make pylint happy, we had to disable a warning about defining a
variable called `copyright` since that's a built-in. It's unlikely that
we will ever need the built-in `copyright()` in this module, so it seems
safe to disable it.
2 files changed