changed the description of chatbot

app.py

@@ -17,7 +17,7 @@ client = InferenceClient("microsoft/phi-4")
 
 def respond(message, history):
 
-    messages = [{"role": "system", "content": "You are a polite, helpful chatbot whose sole responsibilty is to help users understand technical terms in technology."}]
+    messages = [{"role": "system", "content": "You are a polite chatbot helps users understand technical terms in technology."}]
 
     if history:
         messages.extend(history)