Consider adding a license

[marco-m]

Hello @danslimmon,

I stumbled upon donothing and I think that it has a lot of potential! Thanks for sharing it.
I understand that it is not complete (I saw the branch adding Run), but I would like to play a bit with it.
Would you be so kind to add a license to the code?

Thanks!

[marco-m]

For people interested, I wrote my own approach at incremental automation of manual procedures: https://github.com/marco-m/otium, inspired by donothing.