Updated example to make it clear that structured logging is not possi…

…ble with current compiler (dotnet/roslyn#142).

examples/Thinktecture.Extensions.Logging.Abstractions.Example/Program.cs

@@ -1,6 +1,9 @@
 using System;
+using System.Linq;
 using Microsoft.Extensions.Logging;
 using Serilog;
+using Serilog.Core;
+using Serilog.Events;
 
 namespace Thinktecture.Extensions.Logging.Abstractions.Example
 {
@@ -9,11 +12,12 @@ class Program
 		static void Main(string[] args)
 		{
 			var serilog = new LoggerConfiguration()
-				.WriteTo.Console()
-				.CreateLogger();
+						.WriteTo.Console()
+						.WriteTo.Sink(new MySink())
+						.CreateLogger();
 			var logger = new LoggerFactory()
-				.AddSerilog(serilog)
-				.CreateLogger<Program>();
+						.AddSerilog(serilog)
+						.CreateLogger<Program>();
 
 			var a = "text";
 			var b = 42;
@@ -24,4 +28,21 @@ static void Main(string[] args)
 			Console.ReadLine();
 		}
 	}
+
+	internal class MySink : ILogEventSink
+	{
+		public void Emit(LogEvent logEvent)
+		{
+			Console.WriteLine();
+			Console.WriteLine($"Template: {logEvent.MessageTemplate.Text}");
+			Console.WriteLine("Properties:");
+
+			foreach (var kvp in logEvent.Properties)
+			{
+				// Issue: formattable string does not capture the names of the placeholders
+				// https://github.com/dotnet/roslyn/issues/142
+				Console.WriteLine($"\t{kvp.Key} = {kvp.Value}");
+			}
+		}
+	}
 }