add some short async examples

README.md

@@ -47,6 +47,7 @@ _(p.s. I have other repos for [C# / .NET code](https://github.com/grantwinney/CS
 
 ## Threading
 
+* Async, CancellationToken, and IProgress in 5 Short Examples ([blog post](https://grantwinney.com/async-in-5-short-examples), [source code](https://github.com/grantwinney/SurvivingWinForms/tree/master/Threading/SimpleAsyncExamples))
 * Calling an async method from a synchronous one ([blog post](https://grantwinney.com/call-an-async-method-from-a-synchronous-one), [source code](https://github.com/grantwinney/SurvivingWinForms/tree/master/Threading/CallingAsyncMethodFromSynchronousCode))
 * Turning a BackgroundWorker into a Task with TaskCompletionSource ([blog post](https://grantwinney.com/turning-a-backgroundworker-into-a-task-with-taskcompletionsource), [source code](https://github.com/grantwinney/SurvivingWinForms/tree/master/Threading/TaskCompletion))
 * Using Async, Await, and Task to keep the WinForms UI responsive ([blog post](https://grantwinney.com/using-async-await-and-task-to-keep-the-winforms-ui-more-responsive), [source code](https://github.com/grantwinney/SurvivingWinForms/tree/master/Threading/AsyncAwait))

Threading/AsyncAwait/AsyncAwait/frmResponsiveModal.cs

@@ -61,7 +61,7 @@ private async void btnMultipleThreads_Click(object sender, EventArgs e)
             prgMultipleThreads.Show();
 
             var progress = new Progress<string>();
-            progress.ProgressChanged += (s, message) =>
+            progress.ProgressChanged += (_, message) =>
             {
                 if (!txtMultipleThreads.IsDisposed)
                     txtMultipleThreads.AppendText(message + Environment.NewLine);
@@ -83,7 +83,7 @@ private async void btnMultipleThreadsHeavy_Click(object sender, EventArgs e)
             prgMultipleThreadsHeavy.Show();
 
             var progress = new Progress<string>();
-            progress.ProgressChanged += (s, message) =>
+            progress.ProgressChanged += (_, message) =>
             {
                 if (!txtMultipleThreadsHeavy.IsDisposed)
                     txtMultipleThreadsHeavy.AppendText(message + Environment.NewLine);

Threading/SimpleAsyncExamples/SimpleAsyncExamples.sln

@@ -0,0 +1,25 @@
+
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+MinimumVisualStudioVersion = 10.0.40219.1
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+EndProject
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+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
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+		{DCEBA89D-2623-4376-9BE8-D35591F387B0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DCEBA89D-2623-4376-9BE8-D35591F387B0}.Release|Any CPU.Build.0 = Release|Any CPU
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+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {2BD652D9-6189-45CB-8C78-E73074D7746B}
+	EndGlobalSection
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