Update wording

app.py

@@ -106,8 +106,11 @@ with block as nim_game:
     nim_game.load(reset_game, inputs=[history_state, nim_game_env_state],
                   outputs=[chatbot, history_state, message_tb, game_state_html, nim_game_env_state])
 
-    gr.Markdown("""<center><a href="https://en.wikipedia.org/wiki/Nim" target="new">
-    Nim is one of the first-ever electronic computerized games</a></center>""")
+    gr.Markdown("""<center>Each player may remove sticks from a pile on their turn. 
+    Player to remove the last stick wins.
+    <a href="https://en.wikipedia.org/wiki/Nim" target="new">
+    Nim is one of the first-ever electronic computerized games</a>
+    </center>""")
 
     gr.HTML("<center>Powered by <a href='https://github.com/hwchase17/langchain'>LangChain 🦜️🔗</a></center>")