Clean up documentation a little and point to new doc location

.readthedocs.yml

@@ -1,24 +1,8 @@
 # Read the Docs configuration file
 # See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
-
-# Required
 version: 2
-
-# Build documentation in the docs/ directory with Sphinx
 sphinx:
   configuration: docs/source/conf.py
-
-# Build documentation with MkDocs
-#mkdocs:
-#  configuration: mkdocs.yml
-
-# Optionally build your docs in additional formats such as PDF
-formats:
-  - htmlzip
-  - epub
-  - pdf
-
-# Optionally set the version of Python and requirements required to build your docs
 python:
   install:
     - requirements: docs/source/requirements.txt