Update example

Author: olexale

example/test/songs.feature

@@ -1,7 +1,7 @@
 Feature: Songs
 
   Scenario: Available songs
-    Given the following songs
+    Given the following {'Good'} songs
       | 'artist'      | 'title'              |
       | 'The Beatles' | 'Let It Be'          |
       | 'Camel'       | 'Slow yourself down' |

example/test/songs_test.dart

@@ -1,7 +1,8 @@
 import 'package:bdd_widget_test/data_table.dart' as bdd;
 import 'package:flutter_test/flutter_test.dart';
 
-/// Usage: the following songs
-Future<void> theFollowingSongs(WidgetTester tester, bdd.DataTable dataTable) async {
+/// Usage: the following {'Good'} songs
+Future<void> theFollowingSongs(
+    WidgetTester tester, String param1, bdd.DataTable dataTable) async {
   throw UnimplementedError();
 }