Add Gif file

Author: sergepilipchuk

Images/resize-row-height.gif

@@ -9,7 +9,7 @@
 
 This example implements resizable rows in a DevExpress WPF [Grid](https://docs.devexpress.com/WPF/DevExpress.Xpf.Grid.GridControl). Users can interactively change the height of individual grid rows (similar to resizing columns) and retain these changes for a consistent user experience.
 
-![Resize Row Height with a Splitter](./Images/resize-row-height.jpg)
+![Resize Row Height with a Splitter](./Images/resize-row-height.gif)
 
 ## Implementation Details