Fix templates directory structure to produce correct nupkg output

templates/Microsoft.AspNetCore.SpaTemplates/knockout/Controllers/HomeController.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+
+namespace KnockoutSpa.Controllers
+{
+    public class HomeController : Controller
+    {
+        public IActionResult Index()
+        {
+            return View();
+        }
+
+        public IActionResult Error()
+        {
+            ViewData["RequestId"] = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
+            return View();
+        }
+    }
+}