Update vector_store_retriever.py

vector_store_retriever.py

@@ -19,7 +19,7 @@ texts=["The meaning of life is to love","The meaning of vacation is to relax","R
 db = Chroma.from_texts(texts, hf, collection_name="my-collection")
 
 # Create a RetrievalQA chain
-llm = LLM.from_model("vicuna-13b")  # Replace with the appropriate LLM model
+llm = LLM.from_model("lgaalves/gpt2-dolly")  # Replace with the appropriate LLM model
 docsearcher = RetrievalQA.from_chain_type(
   llm=llm, 
   chain_type="stuff",  # Replace with the appropriate chain type