Documentation: PR template points to wrong documentation

[lolbinarycat]

Problem

the PR template points to https://nixos.org/manual/nixpkgs/unstable/#reviewing-contributions-package-updates instead of
https://github.com/NixOS/nixpkgs/blob/master/pkgs/README.md#reviewing-contributions

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Add a 👍 reaction to issues you find important.

[SuperSandro2000]

#298333

I kindly ask you to just create the PR the next time with this really trivial change instead of creating an issue.

[lolbinarycat]

it's only trivial if you have experience with how github works. i had no idea the template was controlled by a file within the repo and not some option in the settings.