Fix .readthedocs.yaml

GitHub: fix mxcube#839

.readthedocs.yaml

@@ -19,10 +19,16 @@ build:
   tools:
     python: "mambaforge-22.9"
 
-  commands:
-    - "mamba env create --file conda-environment-dev.yml"
-    - "mamba run --name mxcubecore poetry install --only=docs,main"
-    - "mamba run --name mxcubecore poetry run sphinx-build -T -E -b html -c ./docs/ ./docs/source/ ${READTHEDOCS_OUTPUT}/html/"
+  jobs:
+    post_install:
+      - "poetry install --only=docs,main"
+
+#  commands:
+#    - "poetry install --only=docs,main"
+#    - "poetry run sphinx-build -T -E -b html -c ./docs/ ./docs/source/ ${READTHEDOCS_OUTPUT}/html/"
+
+conda:
+  environment: "conda-environment-dev.yml"
 
 
 ...  # EOF