add docs

.readthedocs.yml

@@ -0,0 +1,14 @@
+version: 2
+
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+  jobs:
+    post_install:
+      - pip install poetry
+      - poetry config virtualenvs.create false
+      - poetry install --with=docs
+
+sphinx:
+  configuration: docs/source/conf.py