Update .github/PULL_REQUEST_TEMPLATE.md

Co-authored-by: Sam Liu <[email protected]>

.github/PULL_REQUEST_TEMPLATE.md

@@ -9,7 +9,7 @@ How to play your game?
 <!-- Example  : Press WASD to move, J to restart and K to toggle trails, Get A boxes (cyan) to A goals (green), Get B boxes (magenta) to B goals (red), Get normal boxes (gray) to either goal. (from [Sokoban plus](https://editor.sprig.hackclub.com/?file=https://raw.githubusercontent.com/hackclub/sprig/main/games/sokoban_plus.js)) -->
 
 ## Code
-Check off the items that are true.
+Check off the items that are true. <-- Put a `x` in the  `[ ]`. Example: `[x] The game was made...` -->
 - [ ] The game was made using the [Sprig editor](https://editor.sprig.hackclub.com/).
 - [ ] The game is placed in the in the [`/games` directory](https://github.com/hackclub/sprig/tree/main/games).
 - [ ] The code is significantly different from all other games in the [Sprig gallery](https://sprig.hackclub.com/gallery) (except for games labeled "demo").