Update app.py

app.py

@@ -107,8 +107,8 @@ if "history" not in st.session_state:
 user_input = st.text_input("Ask a question:", key="input")
 
 if user_input:
-    result = qa_chain({"question": user_input})
-    st.session_state.history.append({"question": user_input, "answer": result["result"]})
+    result = qa_chain(user_input)
+    st.session_state.history.append({"question": user_input, "answer": result})
 
 for entry in st.session_state.history:
     st.write(f"**Question:** {entry['question']}")