add Read the Docs configuration

Author: Deric-W

.readthedocs.yaml

@@ -0,0 +1,19 @@
+version: 2
+
+build:
+  tools:
+    python: "3.10"
+
+formats:
+  - pdf
+  - epub
+
+sphinx:
+  configuration: docs/conf.py
+  fail_on_warning: true
+
+python:
+  install:
+    - requirements: docs/requirements.txt
+    - method: pip
+      path: .