[ElmSharp] Add missed document to Scroller

Change-Id: I7602b1efbab7ad2632371f8f27c3b8f6feb23806

diff --git a/src/ElmSharp/ElmSharp/Scroller.cs b/src/ElmSharp/ElmSharp/Scroller.cs
index cf7352e..a6063a7 100755 (executable)
--- a/src/ElmSharp/ElmSharp/Scroller.cs
+++ b/src/ElmSharp/ElmSharp/Scroller.cs
@@ -783,6 +783,9 @@ namespace ElmSharp
             }
         }
 
+        /// <summary>
+        /// The callback of Realized Event
+        /// </summary>
         protected override void OnRealized()
         {
             base.OnRealized();