add $languages argument

set shortcut
```
require_once 'googleTranslate.php';
googleTranslate("{query}", ['ja', 'en']);
```

![http://gyazo.com/06cfd2977df88a7298369a8a9a709bc3.png](http://gyazo.com/06cfd2977df88a7298369a8a9a709bc3.png)