[AlphaCard] Fix typos

Author: laurkim

polaris.shopify.com/content/components/alpha-card/index.md

@@ -1,5 +1,5 @@
 ---
-title: Alpha Card
+title: Alpha card
 description: Cards are used to group similar concepts and tasks together to make Shopify easier for merchants to scan, read, and get things done.
 category: Structure
 keywords:

polaris.shopify.com/pages/examples/alpha-card-subdued.tsx

@@ -3,14 +3,16 @@ import React from 'react';
 import {withPolarisExample} from '../../src/components/PolarisExampleWrapper';
 
 function AlphaCardExample() {
-  return     <AlphaCard backgroundColor="surface-subdued">
-  <AlphaStack spacing="5">
-    <Text as="h3" variant="headingMd">
-      Online store dashboard
-    </Text>
-    <p>View a summary of your online store’s performance.</p>
-  </AlphaStack>
-</AlphaCard>;
+  return (
+    <AlphaCard backgroundColor="surface-subdued">
+      <AlphaStack spacing="5">
+        <Text as="h3" variant="headingMd">
+          Online store dashboard
+        </Text>
+        <p>View a summary of your online store’s performance.</p>
+      </AlphaStack>
+    </AlphaCard>
+  );
 }
 
 export default withPolarisExample(AlphaCardExample);