At least one deadlink in the REPO

[NobbZ]

The recent mass PR (#1015) that intended to fix exercism.io to exercism.org blindly made me check the links across the PRs and I found a broken one in this repositories CONTRIBUTING.md, perhaps there are more in the remaining files.

https://github.com/exercism/typescript/blob/main/CONTRIBUTING.md?plain=1#L359

[SleeplessByte]

Thanks. Seems that that DNS entry has not been copied.

@iHiD can you fix? https://tracks.exercism.io/typescript/master/unimplemented works, the .org version does not.