Add Google AdSense block to Index.razor for ad display

Author: SamProf

src/MatBlazor.Demo/Pages/Index.razor

@@ -17,6 +17,14 @@
         <div class="mat-layout-grid-cell-span-12">
             <h1 class="mat-h1"><img src="https://raw.githubusercontent.com/SamProf/MatBlazor/master/content/logo.png" style="max-height: 100px;"/> MatBlazor</h1>
             <h4 class="mat-h4">Material Design components for Blazor (@(GetVersion()))</h4>
+            <div style="overflow: hidden; padding-top: 5px;">
+                <ins class="adsbygoogle"
+                     style="display:block"
+                     data-ad-client="ca-pub-3904134905954949"
+                     data-ad-slot="3480345890"
+                     data-ad-format="auto"
+                     data-full-width-responsive="true"></ins>
+            </div>
             <div>
                 <a href="https://www.nuget.org/packages/MatBlazor/" target="_blank">
                     <img src="https://img.shields.io/nuget/v/MatBlazor.svg"/>