Revert "Twiddling with RtD"

This reverts commit 32191791c6.

.readthedocs.yaml

@@ -10,15 +10,7 @@ build:
   os: ubuntu-20.04
   tools:
     python: "3.10"
-  jobs:
+
-    pre_install:
-      - pip install --upgrade --upgrade-strategy only-if-needed --group doc .
-    build:
-      html:
-        python -m sphinx -T -b html -d _build/doctrees -D language=en . $READTHEDOCS_OUTPUT/html
-    post_build:
-      - echo "Command run at 'post_build' step"
-      - echo `date`
 
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
@@ -32,9 +24,9 @@ formats:
 # extra.
 
 #Optionally declare the Python requirements required to build your docs
-# python:
+python:
-#   install:
+  install:
-#     - method: pip
+    - method: pip
-#       path: .
+      path: .
-#       extra_requirements:
+      extra_requirements:
-#         - doc
+        - doc