migrate doc to wwwroot.

Disp/DemoPick1.cs

@@ -4,6 +4,11 @@ using Hi.Native;
 
 namespace Sample.Disp
 {
+    /// <summary>
+    /// Demonstrates basic object picking with mouse interaction in the HiAPI system.
+    /// Shows how to create a pickable 3D object that responds to mouse events by changing its appearance.
+    /// Implements the Pickable base class to enable mouse event handling.
+    /// </summary>
     /// <remarks>
     /// ### Source Code
     /// [!code-csharp[SampleCode](~/../Hi.Sample.Wpf/Disp/DemoPick1.cs)]
@@ -34,8 +39,12 @@ namespace Sample.Disp
         public override void OnMouseLeave(ui_event_type e, panel_state_t state)
 		{
 			isMouseOver = false;
-		}
-		public static void Main()
+		}		
+		/// <summary>
+		/// Entry point for the DemoPick1 example.
+		/// Creates and displays a simple pickable object that changes color on mouse hover.
+		/// </summary>
+		static void Main()
 		{
             DemoUtil.RunApplication("DemoPick1", new DemoPick1());
 		}