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-GITGJhub/

Update the repository description and the README, both named in the issue. Replace the existing game URL with https://githubschool.github.io/github-games-GITGJhub/ and verify that both locations point to the repository's copy. No test is mentioned; confirm the README link and repository description manually.

Written by the indexing model from the issue text.