Update app.py

modification to run in colab

app.py

@@ -4,6 +4,9 @@ import requests
 import pytz
 import yaml
 from tools.final_answer import FinalAnswerTool
+# In order to run the code in colab, change the line to 
+#from smolagents.default_tools import FinalAnswerTool
+
 
 from Gradio_UI import GradioUI