refactor: change folder structure

01-Introductory-Sessions/Session01/Projects/RoutingBasics/Controllers/GalleryController.cs

@@ -0,0 +1,16 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace C02_RoutingBasics.Controllers
+{
+    public class GalleryController : Controller
+    {
+        public IActionResult Index()
+        {
+            return View();
+        }
+        public IActionResult Main()
+        {
+            return View();
+        }
+    }
+}