Update app.py

app.py

@@ -52,7 +52,7 @@ def source_question_answer(query:str,vectorstore:Chroma=chroma_db,llm:HuggingFac
   Return answer to the query
   """
   input_docs = vectorstore.similarity_search(query,k=4)
-  qa_chain = load_qa_chain(llm, chain_type="map_reduce")
+  qa_chain = load_qa_chain(llm, chain_type="stuff")
   query = f"[INST]According to the earnings calls transcripts earlier, {query}[INST]"
 
   response = qa_chain.run(input_documents=input_docs, question=query)