[feature request] sharing config or online config #217

Thanks gren, we use it a lot and it saves our time.

We have many repos(https://github.com/femessage) using gren with the same .grenrc.js.

Now the problem is when we want a new config, we should update all the repos' .grenrc.js , that's frustrating and faulty.

So it's there any plan to support sharing config like https://prettier.io/docs/en/configuration.html#sharing-configurations or getting config via a Github repo file?

Waiting for your response😄