Add a bit more precise doc on Push Notification Wiki

[lolobosse]

I lost half an hour with that because I didn't know how to put this useMasterKey: true, could be cool to update the docs with the #401 response of @gfosco (here).

Something like this:

Parse.Push.send({
  where: query,
  data: {
    alert: 'Test',
    badge: 1,
    sound: 'default'
  }
}, {
  success: function() {
    console.log('##### PUSH OK');
  },
  error: function(error) {
    console.log('##### PUSH ERROR');
  },
  useMasterKey: true
});

Instead of:

Parse.Push.send({
  where: { ... },
  data: { ... }
}, { useMasterKey: true });

Putting it there would be very cool! 😄

[davimacedo]

Maybe it would be also good add an example of cloud code function to send push notifications. I have been indicating the one below to the guys who ask me one:
https://gist.github.com/brunopicinin/ac38aef5665aa3208c35

[flovilmart]

@lolobosse you should not use the old backbone style success, error callback but promises...

[lolobosse]

@flovilmart I'm ready to use anything as long as it is indicated in the docs 😉

[drew-gross]

Done! Thanks for the suggestion!