DeleteButton - demos updated

Author: gvreddy04

BlazorExpress.Bulma.Demo.RCL/Pages/Demos/DeleteButton/DeleteButtonDocumentation.razor

@@ -16,6 +16,10 @@
 </Section>
 
 <Section Class="p-0" Size="HeadingSize.H3" Name="Sizes" PageUrl="@pageUrl" Link="sizes">
+    <Block>
+        The <code>DeleteButton</code> component comes in 4 sizes: Small, Normal, Medium, and Large. 
+        The default size is <b>Normal</b>.
+    </Block>
     <Demo Type="typeof(DeleteButton_Demo_03_Sizes_A)" Tabs="true" />
 </Section>