Fix contributing link

[NoriSte]

Summary
The yarn 2 website does not redirect the org/contributing URL.

[olingern]

We probably want two different links. It may be a little confusing at the moment:

Contributing to v1
https://legacy.yarnpkg.com/en/docs/getting-started

Contributing to v2
https://yarnpkg.com/en/org/contributing

[olingern]

Also, I should note that the cookies ( I suppose that's what's doing the legacy redirect) seem kind of sticky and I can't directly navigate to the v2 docs I've I've chosen to go to the legacy docs in the past.

ping @Daniel15 @arcanis

[PierreBerger]

There is also the Contributing link of the README to replace.

[NoriSte]

Ok (for the README) but what about the @oligot note?
More: is the "legacy" third-level domain going to be renamed "classic"?

[Daniel15]

@NoriSte The domain has already been changed... I might set up a 301 redirect from legacy. to classic. at some point. Currently both domains still work.

[NoriSte]

The README.md' link goes to the CONTRIBUTING.md file where I've added both the v1 and the v2 links 😊

[Ende93]

@NoriSte Seem like the old request change blocks the merge, can you resolve it?

[NoriSte]

Hi @Ende93 It's not clear to me why the continuous-integration/appveyor/pr build is failing, could you help me, please?
I don't understand how the

FAIL __tests__\commands\add.js (83.861s)
  ● add with --ignore-workspace-root-check shouldn't fail on the workspace root
    Error: expect(received).toBe(expected) // Object.is equality

test could be related to my changes...

[Ende93]

I saw the lastest commit(Fixes empty yarnrc files) also failed the same test, so it's ok.

[NoriSte]

Ok, let me know if you need me adding more changes 😊

[Ende93]

Please resolve the request.

[Andrew836-dev]

This seems like the preferred solution to these open issues
#8426 #8350 #8335 #7950
and these open pull requests
#8427 #8365 #8356 #8336 #8213 #8189 #8159 #7952 #7494

@arcanis @olingern

[NoriSte]

I left following the PR because it's not clear to me if I have to do something more or not... 🤔

[merceyz]

Fixed in 0a121f6