Fix with Prettier

Author: bendera

dev/vscode-button-group/dropdown-menu.html

@@ -37,7 +37,9 @@ <h2>Basic example</h2>
       <vscode-demo>
         <div class="dropdown-menu">
           <vscode-button-group>
-            <vscode-button secondary id="button-1" icon="check">Hello World</vscode-button>
+            <vscode-button secondary id="button-1" icon="check"
+              >Hello World</vscode-button
+            >
             <vscode-button
               secondary
               icon="chevron-down"