Add more brackets

Author: tcompa

.github/workflows/documentation.yaml

@@ -111,10 +111,10 @@ jobs:
 
       - run: ls -lh site/*
 
-      - run: echo "event_name=${{github.event_name}}"
+      - run: echo "event_name=${{github.event_name}} event_ref=${{github.event_ref}}"
 
       - name: Deploy docs
-        if: ${{ ( github.event_name == 'push' || github.event_name == 'workflow_dispatch' || github.event_name == 'schedule' ) && github.event.ref == 'refs/heads/main' }}
+        if: ${{ ( github.event_name == 'push' || github.event_name == 'workflow_dispatch' || github.event_name == 'schedule' ) && ( github.event.ref == 'refs/heads/main' ) }}
         uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}