Forego Makefile command

.readthedocs.yml

@@ -28,9 +28,7 @@ build:
       then
         exit 183;
       fi
-    - echo ${READTHEDOCS_VIRTUALENV_PATH}
-    - ls -al ${READTHEDOCS_VIRTUALENV_PATH}
-    - cd docs && pwd && ls -al && make rtd-pr-preview
+    - sphinx-build -b html -d ${READTHEDOCS_OUTPUT}/doctrees ${READTHEDOCS_OUTPUT}/html/
 
 python:
   install: