restore material theme and add mkdocstring for autodoc etc

.github/workflows/docs.yml

@@ -0,0 +1,36 @@
+name: Deploy docs to Pages
+
+on:
+  push:
+    branches: ["main"]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# Allow one concurrent deployment
+concurrency:
+  group: "rtd"
+  cancel-in-progress: true
+
+jobs:
+  # Single deploy job since we're just deploying
+  build:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+          cache: 'pip'
+          cache-dependency-path: "docs/requirements.txt"
+      - name: Build Python
+        working-directory: python
+        run: |
+          python -m pip install -e .
+          python -m pip install -r ../docs/requirements.txt
+      - name: Build docs
+        working-directory: docs
+        run: |
+          mkdoc build