update yaml

Author: ryestew

.readthedocs.yaml

@@ -30,6 +30,6 @@ sphinx:
 # Optional but recommended, declare the Python requirements required
 # to build your documentation
 # See https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
- python:
-    install:
-    - requirements: docs/requirements.txt
+python:
+  install:
+  - requirements: docs/requirements.txt