Example usage in README.md

[Joshua Wulf]

Hi, could you provide some examples of using this library in the README?

I want to put the strings from my application into Zanata. They are currently stored as JSON objects in my app.

[Akira TAGOH]

Sure. working on it now. though I've updated README.md a bit but need more time to prepare the API docs completely. meanwhile, you can also read bin/zanata.js or grunt-zanata-js to get a clue for quick reference.

[Akira TAGOH]

Updated completely.