Update app.py

app.py

@@ -38,7 +38,7 @@ for message in st.session_state.messages:
 # React to user input
 if prompt := st.chat_input("Ask LLama-2-70b anything..."):
     # Display user message in chat message container
-    st.chat_message("human").markdown(prompt)
+    st.chat_message("human",avatar = "🧑‍💻").markdown(prompt)
     # Add user message to chat history
     st.session_state.messages.append({"role": "human", "content": prompt})