Update app.py

app.py

@@ -13,7 +13,7 @@ pc = pinecone.Pinecone(api_key=os.getenv("PINECODE_API_KEY"))
 index = pinecone.Index("course-index", host = host)
 vector_store = Pinecone(index=index, embedding = embedding_model, text_key = "desciption")
 
-llm = HuggingFaceHub(repo_id="distilbert-base-uncased", model_kwargs={"temperature": 0.5, "max_length": 64})
+llm = HuggingFaceHub(repo_id="t5-small", model_kwargs={"temperature": 0.5, "max_length": 64})
 retriever = vector_store.as_retriever()
 qa_chain = RetrievalQA.from_chain_type(llm=llm, chain_type="stuff", retriever=retriever)