WPF-925465-Fixed image not visible issue

Author: SatishRaj4377

wpf/Diagram/Stencil/SymbolGroup/SymbolGroup.md

@@ -348,10 +348,10 @@ To add symbols to a Stencil through `SymbolGroupViewModel`, you can utilize the
     </syncfusion:Stencil.SymbolGroups>
 </syncfusion:Stencil>
 
-![Category Source](SymbolGroup_images/BuiltInShapesList.png)
-
 {% endhighlight %}
 
+![Category Source](SymbolGroup_images/BuiltInShapesList.png)
+
 ## Customize the appearance of the symbols in the built-in categories 
 
 The symbol sizes for the built-in symbol categories are equivalent to the Visio symbol size. Each symbol available in the category collection can be customized by the [PrepareSymbolViewModel](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Diagram.Stencil.Stencil.html#Syncfusion_UI_Xaml_Diagram_Stencil_Stencil_PrepareSymbolViewModel_System_Object_System_String_System_String_) virtual method of the stencil class. Symbols can be modified by using the following properties of the `PrepareSymbolViewModel` method: