MIT license

[honno]

Hello, thank you for writing this software and releasing the source code, as well as your blog post on it! It's been personally useful to see how you implemented sts tests in Python, and I'm currently playing around with using your RandomnessTester to compare my own attempts at implementing the tests.

I was wondering if you would be willing to add a permissive license to this repository, such as the widely-used MIT license. This is mostly a selfish request so that I can happily keep your code in my sts-like program for the aforementioned comparison testing—the README disclaimer doesn't quite give me confidence in that regard—but also it would be a general nicety for you I imagine.

(MIT is simple and super permissive, allowing closed source usage. If you want it to be free to use for just open source software, you may prefer GPLv3 instead.)

I made this a pull request so it would be easy to add the license, but no worries if you're not interested in accepting it, or if you're not interested in adding a license at all for that matter!