Add a license

[yogurtearl]

Please add a license to this repo.

[Linesmerrill]

I also noticed that this repo does not have a LICENSE file in the root directory. I would like to suggest that you add a license to your project so it can be freely used, modified, repurposed, or shared by the open source community. You can find information on various licenses here. To choose the right license for your project, check out choosealicense.com. If you have already chosen a license, to apply this license in a way that the community can recognize, you can add a file in the root directory of your default branch named LICENSE containing your license.