Add Github CI action to build and publish docs (#219)

Author: kevalmorabia97

.github/workflows/pages.yml

@@ -0,0 +1,46 @@
+name: Docs
+
+on:
+  pull_request:
+    branches: [main, release/*]
+  push:
+    branches: [main, release/*]
+
+# Cancel previous runs if new commit is pushed to the same PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: true
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+jobs:
+  build-docs:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - name: Build docs
+        run: pip install tox && tox -e build-docs
+      - name: Upload docs artifact
+        if: github.event_name == 'push'
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: docs/build/html
+
+  deploy-gh-pages:
+    if: github.event_name == 'push'
+    needs: build-docs
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - id: deployment
+        uses: actions/deploy-pages@v4