fix gh page workflow

* remove sphinx action

.github/workflows/sphinx_docs_to_gh_pages.yml

@@ -4,7 +4,6 @@ on:
     branches:	
       - main
   pull_request:
-    branches: [ ops-grillage ]
 jobs:
   deploy:
     name: Deploy to GitHub Pages
@@ -14,11 +13,23 @@ jobs:
 
     - name: Upgrade pip
       run: python -m pip install --upgrade pip
-
-    - uses: ammaraskar/sphinx-action@master
-      with:
-        docs-folder: "docs/"
-        pre-build-command: "apt-get install -y pandoc && python -m pip install sphinx-autodoc-typehints && python -m pip install nbsphinx"
+
+    - name: Install the package and its dependencies
+      run: |
+        python -m pip install .
+
+    - name: Install the docs-build dependencies
+      run: |
+        sudo apt-get install -y pandoc
+        python -m pip install sphinx
+        python -m pip install sphinx-autodoc-typehints 
+        python -m pip install nbsphinx
+        python -m pip install pydata-sphinx-theme
+
+    - name: Build the docs
+      run: |
+        cd docs
+        make html
         
     - name: Commit documentation changes
       run: |