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-twrightlbg/

Update the repository description and README in github-games-twrightlbg. First inspect both current URLs, then replace them with https://githubschool.github.io/github-games-twrightlbg/. Done means the repository description and README point to this copy of the game.

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