Nice readme! It's so common for projects to forget to include an introductory blurb, it's great to see one that does not forget. Small bug in the example code?

Nice readme! It's so common for projects to forget to include an introductory blurb, it's great to see one that does not forget. Small bug in the example code? I think this: return even % 2 == 0 Should be this: return number % 2 == 0