[3.10] gh-129509: Add required key to the dummy Read the Docs config file (#129510)

diff --git a/.readthedocs.yml b/.readthedocs.yml
index 6a9db7186982698324a09b8b4056b4afb14d8ec8..1d12101a7c96be61ab81808ef4959c40eadb6024 100644 (file)
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -3,6 +3,8 @@
 # clicking on the docs preview link on a PR will result in a 404.
 version: 2
 formats: []
+sphinx:
+  configuration: Doc/conf.py
 build:
   os: "ubuntu-22.04"
   tools: