Add links to "Good First Issue" tags in each repo, respectively

[bnb]

Adding links to issues tagged with "Good First Issue" in each WG/team repo to the contributing to Node.js file would be a HUGE help! 💥

[bnb]

Updated to "Good First Issue" from "Good First Contribution" per nodejs/admin#20

[Tiriel]

Hi there, if I may make a suggestion: as the label is updated, the eventual links in READMEs need to be updated too, they now point toward non-existing label.

[pedrovsp]

Should this issue still be open? All links to WG/team repos are working fine for me.

[bnb]

I think it should be, since there are definitely WG/team repos that aren't represented in the list 😃

[pedrovsp]

Alright, I'll take this one as my first issue then! Thanks 🤞

[glaucia86]

@bnb this issue still opened it?