Display page views and unique visitors.

components/MetricCard.js

@@ -0,0 +1,11 @@
+import React from 'react';
+import styles from './MetricCard.module.css';
+
+const MetricCard = ({ value, label }) => (
+  <div className={styles.card}>
+    <div className={styles.value}>{value}</div>
+    <div className={styles.label}>{label}</div>
+  </div>
+);
+
+export default MetricCard;