Update app.py

app.py

@@ -65,6 +65,7 @@ wiki_vector_index = VectorStoreIndex([], storage_context=storage_context, servic
 movie_list = ["Barbie (film)", "Oppenheimer (film)"]
 
 wiki_docs = WikipediaReader().load_data(pages=movie_list, auto_suggest=False)
+top_k = 3
 
 class AutoRetrieveModel(BaseModel):
     query: str = Field(..., description="natural language query string")