user mention

bot.py

@@ -34,7 +34,7 @@ async def roll(interaction: discord.Interaction, dice: str, private: bool):
         return
 
     if not private:
-        intro = f"@{interaction.user.display_name} rolled:\n"
+        intro = f"{interaction.user.mention} rolled:\n"
     else:
         intro = "You rolled:\n"
     msg = intro + "/n".join(result_text)