URL in description and README broken

The URL in the repository description and README are pointing to githubschool's copy of the game instead of yours.

Please fix both so they point to your copy of the game at https://githubschool.github.io/github-games-den-j/

Update the URL in the repository description and README, both of which are named in the issue. Replace the githubschool copy link with https://githubschool.github.io/github-games-den-j/ and verify that both links point to the intended game.

Escrito por el modelo de indexación a partir del texto del issue.