add Volta support

[notsecret808]

I think it would be cool to add support of Volta, because right now, without pinning an exact version on NodeJS version in package.json, it's inconvenient to repeatedly reinstall NodeJS if you have several project with different NodeJS version requirements.

What do you think about that?

[johannesjo]

I am not neccessarily against this, but for me personally this is not needed :)

For handling node versions there is .nvmrc and nvm. Using the same major version should be enough.

[notsecret808]

I am not neccessarily against this, but for me personally this is not needed :)

For handling node versions there is .nvmrc and nvm. Using the same major version should be enough.

You got the point, but I (and, I suggest, a lot of people) prefer Volta over nvm as the "standard" version manager. For suppor we just have to pin the exact version inside package json. I could create a PR fot it.

[johannesjo]

Thanks for the addition!