Update app.py

app.py

@@ -23,12 +23,13 @@ index = initialize_vector_store_index()
 # configure retriever
 retriever = VectorIndexRetriever(
     index=index,
-    similarity_top_k=3,
+    similarity_top_k=1,
 )
 
 def get_response(text, history):
     # For simplicity, we are only using the 'text' argument
-    response = str(retriever.retrieve(text))
+    response = retriever.retrieve(text)
+    r = str(response[0].metadata)+"\n"+response[0].text
     return response