Update app.py

app.py

@@ -1,7 +1,7 @@
 import os
 from gpt_index import GPTSimpleVectorIndex
 import gradio as gr
-API_URL='https://api.openai.com/v1/chat/completions'
+API_URL='https://api.deepseek.com/v1/chat/completions'
 openai_api_key=os.environ['OPENAI_API_KEY']
 if openai_api_key is None:raise ValueError('Did not find openai_api_key, please add an environment variable `OPENAI_API_KEY` which contains it, or pass `openai_api_key` as a named parameter.')
 top_p_chatgpt=1.