URL in description and README broken

The URL in the repository description and the one in the 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-reliable7

Update the URL in the repository description and the README so both point to https://githubschool.github.io/github-games-reliable7. Check the repository page and README to verify that neither link still points to githubschool's copy; done means both URLs target the specified game copy.

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