Update app.py

app.py

@@ -4,7 +4,7 @@ from gpt_index import SimpleDirectoryReader, GPTListIndex, readers, GPTSimpleVec
 from langchain import OpenAI
 
 def ask_patrick():
-    index = GPTSimpleVectorIndex.load_from_disk('index.json')
+    index = GPTSimpleVectorIndex.load_from_disk('index-4.json')
     while True:
         query = input("Tell me about Patrick Collison?")
         response = index.query(query, response_mode="compact", verbose=True)