Update app.py

app.py

@@ -101,7 +101,7 @@ def handle_userinput(user_question,retriever):
     
     doc_txt = [doc.page_content for doc in docs]
     
-    Rag_chain = create_conversational_rag_chain(retriever)
+    rag_chain = create_conversational_rag_chain(retriever)
     response = rag_chain.invoke({"context": doc_txt, "question": user_question})
     st.session_state.messages.append({"role": "assistant", "content": response})
     st.chat_message("assistant").write(response)