add readthedocs config file

Author: cnfait

.readthedocs.yml

@@ -0,0 +1,15 @@
+version: 2
+
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
+sphinx:
+  configuration: docs/source/conf.py
+  # Fail on all warnings to avoid broken references
+  fail_on_warning: true
+
+python:
+  install:
+    - requirements: docs/requirements.txt