Update readthedocs.yml

per lschachaf's fix

readthedocs.yml

@@ -1,12 +1,24 @@
+# Read the Docs configuration file for Sphinx projects
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
 version: 2
 
+# Set the OS, Python version and other tools you might need
 build:
-  os: ubuntu-22.04
-  tools:
-    python: "3.10"
+    os: ubuntu-22.04
+    tools:
+        python: "3.10"
+
+# Build documentation in the "docs/" directory with Sphinx
+sphinx:
+  configuration: docs/source/conf.py
+  # You can configure Sphinx to use a different builder, for instance use the dirhtml builder for simpler URLs
+  # builder: "dirhtml"
+  # Fail on all warnings to avoid broken references
+  fail_on_warning: true
 
 python:
-    version: 3.10
     install:
         - requirements: requirements/REQUIREMENTS-CI.txt
         - method: pip