log file rotation section needs to be updated in README

[blin17]

In the log file rotation section of the README, it says the following code will result in daily logging:

var accessLogStream = FileStreamRotator.getStream({
  filename: logDirectory + '/access-%DATE%.log',
  frequency: 'daily',
  verbose: false
})

However, the output is a minute-by-minute log. It should be updated to:

var accessLogStream = FileStreamRotator.getStream({
      filename: logDirectory + '/access-%DATE%.log',
      frequency: 'daily',
      verbose: false,
      date_format: 'YYYYMMDD'
    });

This produces a day-by-day log.

[dougwilson]

Thanks for the heads-up!