docs: add MkDocs Material documentation site

.github/workflows/docs.yml

@@ -0,0 +1,25 @@
+name: docs
+
+on:
+  push:
+    branches: [dev]
+    paths:
+      - "docs/**"
+      - "overrides/**"
+      - "mkdocs.yml"
+      - ".github/workflows/docs.yml"
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.x"
+      - run: pip install mkdocs-material
+      - run: mkdocs gh-deploy --force --remote-branch docs