Fix: the sample project didn't work on the GitHub Pages live demo

Author: jsakamoto

SampleApps/BlazorWasmApp/Shared/Layout.razor

@@ -2,9 +2,9 @@
 <header>
     <nav>
         <ul>
-            <li><NavLink href="/" Match="NavLinkMatch.All">Example 1</NavLink></li>
-            <li><NavLink href="/example2">Example 2</NavLink></li>
-            <li><NavLink href="/example3">Example 3</NavLink></li>
+            <li><NavLink href="./" Match="NavLinkMatch.All">Example 1</NavLink></li>
+            <li><NavLink href="./example2">Example 2</NavLink></li>
+            <li><NavLink href="./example3">Example 3</NavLink></li>
         </ul>
     </nav>
 </header>