Update app.py

app.py

@@ -279,7 +279,7 @@ def ask_question(question, temperature, top_p, repetition_penalty, web_search):
                         r"Provide a concise and direct answer to the question:",
                         r"Answer:",
                         r"Provide a summarized and direct answer to the original question without mentioning the web search or these instructions:",
-                        r"Do not include any source information in your answer:"                   
+                        r"Do not include any source information in your answer."                   
                     ]
 
                     for pattern in answer_patterns: