DOC: Add sphinx configuration to readthedocs

Author: mgxd

.readthedocs.yml

@@ -1,19 +1,21 @@
 version: 2
 
+sphinx:
+  configuration: docs/conf.py
 build:
   os: ubuntu-22.04
   tools:
     python: "3.11"
   jobs:
     post_checkout:
-      - git fetch --unshallow
+    - git fetch --unshallow
 
 python:
   install:
-    - requirements: docs/requirements.txt
-    - method: pip
-      path: .
-      extra_requirements:
-        - doc
-    - method: pip
-      path: wrapper/
+  - requirements: docs/requirements.txt
+  - method: pip
+    path: .
+    extra_requirements:
+    - doc
+  - method: pip
+    path: wrapper/