Update app.py

app.py

@@ -275,7 +275,7 @@ async def update_leaderboard(ctx, num_results: int = 10):
     def xp_required_to_next_level(current_level, current_xp):
         level_ceiling_xp = calculate_xp(current_level+1)
         xp_to_level_up = level_ceiling_xp - current_xp    
-        return max(xp_to_level_up)
+        return (xp_to_level_up)
 
 
     # put into message / leaderboard