Create build sphinx github action workflow

.github/workflows/build_sphinx.yml

@@ -0,0 +1,40 @@
+name: Build Sphinx Documentation
+
+on:
+  push:
+    branches:
+      - main  # Adjust this to your main branch
+  pull_request:
+    branches:
+      - main  # Optionally build on PRs to the main branch
+
+jobs:
+  build-docs:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out the repository
+      uses: actions/checkout@v3
+
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.8'  # Specify your required Python version
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r docs/requirements.txt
+        # Add other Sphinx dependencies here
+
+    - name: Build the documentation
+      run: |
+        cd docs
+        make html
+
+    - name: Upload Documentation
+      uses: actions/upload-artifact@v3
+      with:
+        name: sphinx-docs
+        path: docs/build/html
+