Update .readthedocs.yaml

.readthedocs.yaml

@@ -18,6 +18,6 @@ sphinx:
     
 # We recommend specifying your dependencies to enable reproducible builds:
 # https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
-#python:
-#   install:
-#   - requirements: source/requirements.txt
+python:
+   install:
+   - requirements: source/requirements.txt