#262 added working eureka sample (#333)

samples/OcelotEureka/DownstreamService/Program.cs

@@ -0,0 +1,20 @@
+using System;
+using Microsoft.AspNetCore;
+using Microsoft.AspNetCore.Hosting;
+
+namespace DownstreamService
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            BuildWebHost(args).Run();
+        }
+
+        public static IWebHost BuildWebHost(string[] args) =>
+            WebHost.CreateDefaultBuilder(args)
+                .UseUrls($"http://{Environment.MachineName}:5001")
+                .UseStartup<Startup>()
+                .Build();
+    }
+}