Update showcase/app/templates/components/card.hbs

Co-authored-by: Dylan Hyun <dylan.hyun@hashicorp.com>

Author: KristinLBradley

Diff for: showcase/app/templates/components/card.hbs

@@ -107,7 +107,7 @@
       <SG.Item @label="Card using list item tag">
         <ul class="shw-component-card-list">
           <Hds::Card::Container @level="mid" @hasBorder={{true}} @tag="li">
-            <Shw::Placeholder @text="div" @width="200" @height="200" @background="transparent" />
+            <Shw::Placeholder @text="li" @width="200" @height="200" @background="transparent" />
           </Hds::Card::Container>
         </ul>
       </SG.Item>