Update README.md

README.md

@@ -63,7 +63,7 @@ Action: Search
 Action Input: Who is the President of the United States?
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-if you launched a httpserver with the model and installed langchain(https://github.com/hwchase17/langchain), you can modify demo.py to your httpserver's ip&port, then run it.(https://github.com/rinnakk/vicuna-13b-delta-finetuned-langchain-MRKL/blob/main/demo.py)<br>
+if you launched a httpserver with the model and installed langchain(https://github.com/hwchase17/langchain), you can modify demo.py with your httpserver's ip&port and your SERPAPI_API_KEY, then run it.(https://github.com/rinnakk/vicuna-13b-delta-finetuned-langchain-MRKL/blob/main/demo.py)<br>
 you can also try this by Jupyter Notebook. https://github.com/rinnakk/vicuna-13b-delta-finetuned-langchain-MRKL/blob/main/demo.ipynb
 
 **Where to send questions or comments about the model:**