RFC: Updating Git for Windows' Code of Conduct

Hi all, especially active Git for Windows contributors,

I would like to ask you for (constructive ;-)) feedback on

	https://github.com/git-for-windows/git/pull/661

I personally find it very important to keep it fun and pleasant to contribute to Git for Windows anf hope that the updated Code of Conduct will make that even easier than the current one.

So if you could spare a moment and look over that Pull Request, that would be very much appreciated.

Thanks, Johannes