Fix Apple HIG link

[Niek]

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[Niek]

@googlebot I signed it!

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[stuartmorgan-g]

Thanks for the contribution! Looks like this changed at some point, but the newer version isn't working now either, while the one here appears to. If you want to rebase this, and add a version and CHANGELOG update per the PR checklist (so that we can publish it, since the published README is what most people see), we can get this landed and reviewed quickly.

We apologize for the long delay in triaging this PR. We’re in the process of overhauling our PR triage system to respond much more quickly, as well as working through the backlog.

[stuartmorgan-g]

#3305 ended up being the same fix, but has the same conflict; whichever gets updated can be landed.

[stuartmorgan-g]

Closing in favor of 3305, since that's now been updated.