update readthedocs.yaml

.readthedocs.yaml

@@ -7,11 +7,15 @@ version: 2
 
 build:
   os: "ubuntu-22.04"
+  tools:
+    python: "3.7"
 
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
   configuration: docs/source/conf.py
 
-# Optionally set the version of Python and requirements required to build your docs
+# We recommend specifying your dependencies to enable reproducible builds:
+# https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
 python:
-  version: 3.7
+  install:
+  - requirements: docs/requirements.txt