Update app.py

app.py

@@ -14,6 +14,7 @@ def property_search_tool(property_type:str, location:str, price:int)-> str: #it'
     #Keep this format for the description / args / args description but feel free to modify the tool
     """A tool that searches for property in a given location at a given price
     Args:
+        property_type: the type of propert whether its an apartment, a bungalow, farm
         location: the location of the property
         price: the price of the rent or sale price
     """