Updated example.

Author: simphotonics

README.md

@@ -36,17 +36,14 @@ the mixin `TimeTracker`.
 
 
 ```Dart
-import 'package:exception_templates/exception_templates.dart';
+mport 'package:exception_templates/exception_templates.dart';
 import 'package:time_tracker/time_tracker.dart';
 
 /// Demonstrates how to use TimeTracker.
 class TennisMatch with TimeTracker {
   final List<String> players;
 
-  /// Note the use of the constructor `super.startNow()`.
-  /// This creates an instance of TennisMatch with status: started
-  /// and records the instantiation time as the first time point.
-  TennisMatch(List<String> players) : players = List.of(players);
+  TennisMatch(List<String> players) : players = List.unmodifiable(players);
 
   /// Constructs an object from a json map.
   factory TennisMatch.fromJson(Map<String, Object?> json) {

test/src/tennis_match.dart

@@ -5,9 +5,6 @@ import 'package:time_tracker/time_tracker.dart';
 class TennisMatch with TimeTracker {
   final List<String> players;
 
-  /// Note the use of the constructor `super.startNow()`.
-  /// This creates an instance of TennisMatch with status: started
-  /// and records the instantiation time as the first time point.
   TennisMatch(List<String> players) : players = List.unmodifiable(players);
 
   /// Constructs an object from a json map.

test/time_tracker_test.dart

@@ -339,11 +339,10 @@ void main() {
           ),
         ),
       );
-
     });
     test('failed init in state started', () {
       expect(
-        () => matchFactory(status: started, timePoints: [0, 1000,]),
+        () => matchFactory(status: started, timePoints: [0, 1000]),
         throwsA(
           isA<ErrorOf<TimeTracker>>().having(
             (e) => e.message,