Update acknowledgments to include all OpenParlData.ch contributors

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -1379,7 +1379,7 @@ with gr.Blocks(css=custom_css, title="Swiss and European Government Data LLM") a
         """
         ---
         **Data Sources:**
-        - **Swiss Parliament Data:** with thanks to Christian and Florin for creating OpenParlData.ch, the model queries their API to retrieve parliamentary data
+        - **Swiss Parliament Data:** with thanks to Christian, Florin and the many contributors for creating OpenParlData.ch, the model queries their API to retrieve parliamentary data
         - **Swiss Statistics (BFS):** Federal Statistical Office data via PxWeb API
 
         **Rate Limit:** 50 requests per day per user (shared across both datasets) to keep the service affordable and accessible.