Possible need for more explicit examples

[justgage]

I was reading this Stack Overflow question about your library. He seems confused about why things aren't encrypted. I sort of feel this way as well although I suspect that it's actually secretly unencrypting it as it comes out of the database. Because of this perhaps the README.md could use some help with a more explicit walk through possibly showing it's effects.

For a JSBin trying it you can go here: https://jsbin.com/viwijucuqa/edit?html,console,output

[calvinmetcalf]

I cleaned up the readme here a218e1d