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-chrbac13/

Update the repository description and the URL in README so both point to https://githubschool.github.io/github-games-chrbac13/. Start by checking the current description and README link, then verify that each points to this repository's copy of the game.

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