Update app.py

fixed reset error, needed md(response)

app.py

@@ -622,7 +622,7 @@ def chat(prompt, user_window, pwd_window, past, response, gptModel, uploaded_ima
             return [past, md(response), None, gptModel, uploaded_image_file, plot]
         if prompt == 'reset':
             response = genUsageStats(True)
-            return [past, response, None, gptModel, uploaded_image_file, plot]
+            return [past, md(response), None, gptModel, uploaded_image_file, plot]
         if prompt.startswith('gpt4'):
             gptModel = 'gpt-4o-2024-08-06'
             prompt = prompt[5:]