chore(contributing): add commitizen commit message formatting

[stephensauceda]

This adds npm run commit to package.json scripts to assist in formatting git commit messages with commitizen.

Closes #12730

[kentcdodds]

Would love to see this merged! Great work @stephensauceda 👍

[Narretz]

Looks like a worthwhile addition. Wdyt @petebacondarwin ?

[petebacondarwin]

Sure, as long as it is in keeping with our conventions

[kentcdodds]

It is. Never fear :-) and you may also be interested in:
http://npm.im/validate-commit-msg

On Thu, Oct 29, 2015, 4:27 PM Pete Bacon Darwin notifications@github.com
wrote:

Sure, as long as it is in keeping with our conventions

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#13194 (comment).

• Kent C. Dodds https://twitter.com/kentcdodds

[petebacondarwin]

Merging

[petebacondarwin]

Yes, this looks cool. Although I tend to use a UI tool for rebasing and updating commits :-)

[jimthedev]

@petebacondarwin Eventually I'd love to see some GUIs hook into this to be able to offer prompts. There is an open (pie in the sky) issue for it here: commitizen/cz-cli#45

The GUIs would just need to offer some hook we could call then wrap the Inquirer.js interface for prompts. Again, this may never happen, but it would be nice to offer it as an opt-in integration.