Create copy / paste example

[rsweetland]

The current Winston transport example gives the following error when run as-is (node 8.10, Winston 2.4.3)

/Users/reilly/Projects/mem/node_modules/winston/lib/winston/logger.js:481
  var instance = created ? transport : (new (transport)(options));
                                        ^

TypeError: transport is not a constructor
    at exports.Logger.Logger.add (/Users/reilly/Projects/mem/node_modules/winston/lib/winston/logger.js:481:41)
    at Object.winston.(anonymous function) [as add] (/Users/reilly/Projects/mem/node_modules/winston/lib/winston.js:86:34)
    at logLogDNAWinston (/Users/reilly/Projects/mem/tmp.js:100:11)
    at Object.<anonymous> (/Users/reilly/Projects/mem/tmp.js:103:1)

I get the general idea from the code and the Winston docs, but a working example would be nice.