cosmetic changes

app.py

@@ -52,13 +52,17 @@ def get_chain(model_name, _memory, temperature):
 
             
 if __name__ == "__main__":
+
     st.header("Basic chatbot")
+
+    st.write("On small screens, click the `>` at top left to get started")
+
     with st.expander("How conversation history works"):
         st.write("To keep input lengths down and costs reasonable,"
                  " this bot only 'remembers' the past three turns of conversation.")
         st.write("To clear all memory and start fresh, click 'Clear history'" )
 
-    st.sidebar.title("Enter API key and model")
+    st.sidebar.title("Choose options and enter API key")
 
     USER_API_KEY = st.sidebar.text_input(
         'API Key',
@@ -81,7 +85,7 @@ if __name__ == "__main__":
         help="Set the decoding temperature. Lower temperatures give more predictable outputs."
         )
 
-        
+    
     if USER_API_KEY is not None:
         set_api_key(USER_API_KEY)
         memory = setup_memory()
@@ -100,7 +104,7 @@ if __name__ == "__main__":
                 with st.chat_message("assistant"):
                     st.write(result)
             except AuthenticationError:
-                st.warning("Enter a valid OpenAI API key", icon="⚠️")
+                st.warning("Enter a valid API key", icon="⚠️")