add visit webpage tool

app.py

@@ -1,4 +1,5 @@
-from smolagents import CodeAgent, DuckDuckGoSearchTool, PythonInterpreterTool, HfApiModel, load_tool, tool
+from smolagents import (CodeAgent, DuckDuckGoSearchTool, PythonInterpreterTool, VisitWebpageTool,
+    HfApiModel, load_tool, tool)
 import datetime
 import requests
 import pytz
@@ -56,7 +57,7 @@ with open("prompts.yaml", 'r') as stream:
 agent = CodeAgent(
     model=model,
     tools=[image_generation_tool, my_custom_tool, get_current_time_in_timezone, 
-           DuckDuckGoSearchTool(), PythonInterpreterTool(), final_answer], ## add your tools here (don't remove final answer)
+           DuckDuckGoSearchTool(), PythonInterpreterTool(), VisitWebpageTool(), final_answer], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,