update meta headers

Author: warpech

demo/scroll_native.html

@@ -22,15 +22,16 @@
   <!--
   Facebook open graph. Don't copy this to your project :)
   -->
-  <meta property="og:title" content="Scroll">
+  <meta property="og:title" content="Native Scrollbar">
   <meta property="og:description"
-        content="If you want scrollbars, just set it in the container CSS.">
-  <meta property="og:url" content="http://handsontable.com/demo/scroll.html">
+        content="This demo shows table of 100 000 rows. Only visible part is rendered. Native window scrollbar is used to
+            scroll through the table.">
+  <meta property="og:url" content="http://handsontable.com/demo/scroll_native.html">
   <meta property="og:image" content="http://handsontable.com/demo/image/og-image.png">
   <meta property="og:image:type" content="image/png">
   <meta property="og:image:width" content="409">
   <meta property="og:image:height" content="164">
-  <link rel="canonical" href="http://handsontable.com/demo/scroll.html">
+  <link rel="canonical" href="http://handsontable.com/demo/scroll_native.html">
 
   <!--
   Google Analytics for GitHub Page. Don't copy this to your project :)