docs(grid): minor wording fixes

Author: svdimitr

components/grid/columns/virtual.md

@@ -22,8 +22,8 @@ To enable Virtualized Columns:
 
 This article will be separated in the following sections:
 * [Basics](#basics)
-* [Virtual Columns and Rows](#virtual-columns-and-rows)
-* [Virtual Autogenerated Columns](#virtual-autogenerated-columns)
+* [Virtualized Columns and Rows](#virtualized-columns-and-rows)
+* [Virtualized Autogenerated Columns](#virtualized-autogenerated-columns)
 * [Notes](#notes)
 
 
@@ -198,7 +198,7 @@ You can use Virtualized Columns and Rows together. More information on Virtual R
 
 ![gif of virtual columns](images/virtual-columns-rows.gif)
 
-## Virtual Autogenerated Columns
+## Virtualized Autogenerated Columns
 
 In order to add Virtualized Autogenerated Columns, the `ColumnWidth` parameter must be set. For more information on Autogenerated columns you can read the [Automatically Generated Columns]({%slug grid-columns-automatically-generated%}) article.