Add code examples, and documentation

patterns/bridge/Bridge Example/Notification.cs

@@ -0,0 +1,14 @@
+namespace Bridge_Example;
+
+//This is the abstraction
+public abstract class Notification
+{
+   protected readonly IMessageSender _sender;
+
+   protected Notification(IMessageSender sender)
+   {
+      _sender = sender;
+   }
+
+   public abstract void Notify(string message);
+}