anchor.diff:  
     await http.startServer('127.0.0.1', 3000);
     print('Listening at ${http.uri}');
  -  print('(See what happens when you visit http://localhost:3000 instead)');
  +  print('See what happens when you visit http://localhost:3000 instead '
  +      'of http://127.0.0.1:3000. Then, try '
  +      'http://api.localhost:3000.');
   }
  
positive.code: import 'package:angel_framework/angel_framework.dart';
  import 'package:angel_framework/http.dart';
  import 'package:logging/logging.dart';
  
  Future<void> apiConfigurer(Angel app) async {
    app.get('/', (req, res) => 'Hello, API!');
  
negative.code: 
  main() async {
    // Logging set up/boilerplate
    hierarchicalLoggingEnabled = true;
    Logger.root.onRecord.listen(prettyLog);
  
    var app = Angel(logger: Logger('angel'));
    var http = AngelHttp(app);
  