update count for card 3

card-three/index.html

@@ -34,7 +34,7 @@
 		<main id="main">
 			<h1>The Travels of <span class="card">Card Three</span></h1>
 
-			<p>7 people are signed up for <span class="card">card three</span> so far.</p>
+			<p>10 people are signed up for <span class="card">card three</span> so far.</p>
 		</main>
 
 		<footer id="footer"><!-- auto populated by nav.js --></footer>