Update app.py

app.py

@@ -28,10 +28,11 @@ if "messages" not in st.session_state:
     st.session_state.messages = []
 
 # Display the chat history
- st.markdown(
+st.markdown(
         "<h1 style='text-align: center;'><b> Chatgpt <b/>.</h1>",
         unsafe_allow_html=True
-    )for msg in st.session_state.messages:
+    )
+for msg in st.session_state.messages:
     if isinstance(msg, HumanMessage):
         st.write(f"**You:** {msg.content}")
     elif isinstance(msg, AIMessage):