add info

app.py

@@ -166,8 +166,8 @@ class GradioUI:
     def launch(self, **kwargs):
         with gr.Blocks(theme="ocean", fill_height=True) as demo:
             gr.Markdown("""# Smolagents - ExtraSearchtools!
-- [Google Custom Search](https://developers.google.com/custom-search/v1/overview) tool
-- [Brave Search](https://brave.com/search/api/) tool
+- [Google Custom Search](https://developers.google.com/custom-search/v1/overview) tool Free 100 per day
+- [Brave Search](https://brave.com/search/api/) tool Free 2000 per month
 - PrioritySearchTool - try duckduckgo fist and then use google
 - PrioritySearchTool - json-save function