change for docs

.github/workflows/sphinx.yml

@@ -9,6 +9,14 @@ jobs:
       contents: write
     steps:
     - uses: actions/checkout@v4
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.x'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install sphinx sphinx_rtd_theme
     - name: Build HTML
       uses: ammaraskar/sphinx-action@master
     - name: Upload artifacts