fix: generate params

app.py

@@ -108,7 +108,7 @@ def generate_text(prompt):
         "presence_penalty": 0,
         "temperature":1,
         "top_p": 1,
-        "messages":[{"role":"user", "content": prompt}]
+        "messages":[{"role":"system","content":"You are ChatGPT, a large language model trained by OpenAI.\nCarefully heed the user's instructions. \nRespond using Markdown."},{"role":"user", "content": prompt}]
         }
     
     #print(data)