add packaged requirements to docs building config

.readthedocs.yaml

@@ -13,6 +13,13 @@ build:
     # nodejs: "20"
     # rust: "1.70"
     # golang: "1.20"
+
+# 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: requirements.txt
 
 # Build documentation in the "docs/" directory with Sphinx
 sphinx:
@@ -26,10 +33,3 @@ sphinx:
 # formats:
 #   - pdf
 #   - epub
-
-# 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