Merge pull request #419 from prabhuramachandran/fix-rtd-ref-docs

Try and fix RTD reference docs.

Author: prabhuramachandran

.readthedocs.yaml

@@ -32,4 +32,6 @@ sphinx:
 # See https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
 python:
   install:
-    - requirements: docs/requirements.txt
+    - requirements: docs/requirements.txt
+    - method: pip
+      path: .