Add template method example

src/TemplatePattern/WorkersExample/ConstructionWorker.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace TemplatePattern.WorkersExample
+{
+    public class ConstructionWorker : Worker
+    {
+        protected override void GoToWork()
+        {
+            Console.WriteLine("Buy some beers");
+            base.GoToWork();
+        }
+        protected override void Work()
+        {
+            Console.WriteLine("If nobody is around, just look around, if boss is around work a little bit");
+        }
+    }
+}