Keep and display chat history

app.py

@@ -49,6 +49,9 @@ if st.button("Submit"):
         )
         
         answer = completion.choices[0].message['content']
+        st.session_state.conversation += f"User: {user_input}\nAdrega AI: {answer}\n\n"
         st.write(f"Adrega AI: {answer}") 
     else: 
         st.write("Please enter a question.")
+
+st.text_area("Conversation History", value=st.session_state.conversation, height=300, max_chars=None)