Update app.py

app.py

@@ -22,10 +22,10 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
 
 @tool
 def wikipedia_search(query: str, sentences : int =2):
-    """A tool that search a definition on wikipedia  
+    """A tool that searches a definition on Wikipedia  
     Args:
-        arg1: the query to fetch the defition for
-        arg2: the length of the summary to provide for the defition
+        query: the query to fetch the defitniion for on Wikipedia
+        sentences: the length of the summary to provide for the defitniion
     """
     
     try: