Update readthedocs config for removal of docs/source

Oversight in 756ff67.

Author: aclark4life

.readthedocs.yaml

@@ -8,7 +8,7 @@ version: 2
 # Build documentation in the doc/ directory with Sphinx
 sphinx:
    builder: dirhtml
-   configuration: docs/source/conf.py
+   configuration: docs/conf.py
    fail_on_warning: true
 
 # Set the version of Python and requirements required to build the docs.