Updated RTD docs config (#181)

.readthedocs.yaml

@@ -1,10 +1,25 @@
+# .readthedocs.yaml
+# Read the Docs configuration file
+# 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-24.04
+  os: ubuntu-22.04
   tools:
-    python: latest
+    python: "3.12"
+
+# Build documentation in the "docs/" directory with Sphinx
 sphinx:
-  configuration: docs/conf.py
+  configuration: docs/source/conf.py
+
+# Optionally build your docs in additional formats such as PDF and ePub
+# formats:
+#    - pdf
+#    - epub
+
 python:
   install:
-    - requirements: dev-requirements.txt
+    - requirements: dev-requirements.txt