added github action

.github/workflows/graphdoc.yml

@@ -0,0 +1,32 @@
+name: "Sphinx: Render docs"
+
+on: 
+  push:
+    branches: [ graphdoc ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Build HTML
+      uses: ammaraskar/sphinx-action@master
+      with:
+        docs-folder: "GraphDocumentation/"
+    - name: Upload artifacts
+      uses: actions/upload-artifact@v4
+      with:
+        name: documentationHTML
+        path: GraphDocumentation/_build/html/
+    - name: Deploy
+      uses: peaceiris/actions-gh-pages@v3
+      if: github.ref == 'refs/heads/graphdoc'
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        publish_dir: GraphDocumentation/_build/html
+