Merge pull request #1495 from syncfusion-content/surface_Chart_Theme_image_added

903319-Surface chart theme image added for surface chart UG

Author: Jeyasri-Murugan

wpf/Surface-Chart/Getting-Started.md

@@ -525,4 +525,6 @@ WPF SurfaceChart (SfSurfaceChart) supports various built-in themes. Refer to the
 
   * [Create a custom theme using ThemeStudio](https://help.syncfusion.com/wpf/themes/theme-studio#creating-custom-theme)
 
+  ![theming-support-in-WPF-surface-chart-control](surface_chart_images/theming-support-in-WPF-surface-chart-control.png)
+