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-lukelu753

Update the repository description and the URL in README so both point to https://githubschool.github.io/github-games-lukelu753. Start by opening README and the repository settings description, then verify that both links use the requested address.

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