Horse Race page updated

Seems I’ve been a bit slack lately with keeping the website up to date with the latest code changes. The main victim of this has been the Horse Race game. Horse Race has undergone some big changes this year to try and focus it away from being a bit of fun, too something that can be used for effectively for hosting a Race Night. I’ve swapped out the videos to better reflect the current state of the game, and updated the blurb as well.