Update app.py

app.py

@@ -12,7 +12,7 @@ from Gradio_UI import GradioUI
 @tool
 def tell_a_joke()-> str:
     #Keep this format for the description / args / args description but feel free to modify the tool
-    """A tool that tells a joke.
+    """A tool that tells a joke. 
     """
     url = "https://v2.jokeapi.dev/joke/Programming,Misc?format=json&blacklistFlags=nsfw,sexist,racist,explicit&type=single&lang=en&amount=1"
     response = requests.get(url)