document overriding options.correlator

[mateodelnorte]

allows for overriding default behavior of subscriptions where, when a queueName is not manually provided, servicebus will auto-create a unique queue name for a fanout subscription. by overriding the correlator, one can easily provide their own with simpler conventions that, for instance, don't auto-generate unique queue names:

servicebus.bus({
  correlator: {
    queueName: function (opts, cb) {
      return cb(null, `my-process-name-${opts.queueName}`);
    }
  }
});

In time, a simpler correlator will become the default and a number of options will be included with servicebus.