chore: Add GitHub workflow

.github/workflows/build.yml

@@ -0,0 +1,34 @@
+# Build docs using Sphinx and deploy to GitHub Pages.
+name: Build
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+    inputs:
+      publish:
+        description: "Publish to GitHub Pages (disable to only test the build)"
+        type: boolean
+        default: false
+
+jobs:
+  build_and_deploy:
+    runs-on: ubuntu-latest
+
+    # Grant GITHUB_TOKEN the permissions required to make a Pages deployment
+    permissions:
+      pages: write      # to deploy to Pages
+      id-token: write   # to verify the deployment originates from an appropriate source
+
+    # Deploy to the github-pages environment
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    steps:
+      - name: Build and Deploy Documentation
+        uses: sphinx-notes/pages@v3
+        with:
+          documentation_path: "."
+          requirements_path: "./requirements.txt"
+          publish: ${{ github.event_name == 'push' || github.event.inputs.publish == 'true' }}