hightlight to highlight

Author: AristurtleDev

articles/tutorials/building_2d_games/23_completing_the_game/index.md

@@ -303,7 +303,7 @@ Next, we need to initialize the queue.  In the `Slime` class, locate the `Initia
 
 Next, we need to update the input handling method to store the inputs in the queue instead of immediately overwriting the `_nextDirection` field.  In the `Slime` class, locate the `HandleInput` method and update it to the following
 
-[!code-csharp[](./snippets/slime/handleinput.cs?hightlight=3,22-38)]
+[!code-csharp[](./snippets/slime/handleinput.cs?highlight=3,22-38)]
 
 1. The `potentialNewDirection` is now given the initial value of [**Vector2.Zero**](xref:Microsoft.Xna.Framework.Vector2.Zero).
 2. A check is made to see if the player has pressed a direction key and if the input buffer is not already at maximum capacity.