Initial commit, added folder in students and README.md, assignments 2.1 and 3.1

I think I did this right, but I've been wrong before...
This looks great.  As a challenge, can you add the isDead method using the Person prototype instead of putting it directly in your constructor?  This is a best practice so the method isn't bound to every new Person you create (potentially millions) but is only created once and then referenced by each Person you create. If you need help with the syntax of that, let me know.