update readthedocs configuration

Author: Paul Kienzle

.readthedocs.yaml

@@ -16,9 +16,9 @@ build:
   commands:
     - pip install matplotlib sphinx
     - make -j 4 -C doc/sphinx SPHINXOPTS="-W --keep-going" html
-    - ls doc/sphinx/_build/html
-    - mkdir -p $READTHEDOCS_OUTPUT/html
-    - cp -rp doc/sphinx/_build/html/ $READTHEDOCS_OUTPUT/html/
+    #- ls doc/sphinx/_build/html
+    - mkdir -p $READTHEDOCS_OUTPUT
+    - cp -rp doc/sphinx/_build/html $READTHEDOCS_OUTPUT/html
     - ls $READTHEDOCS_OUTPUT/html
 
 # Build documentation in the "doc/" directory with Sphinx