typo in sidebar

_includes/sidebar.html

@@ -1,5 +1,5 @@
 <div class="sidebar">
-	<p><a href="/participate">Call for proposals</a> are open! Deadline is Augst 10th, 2015.</p>
+	<p><a href="/participate">Call for proposals</a> are open! Deadline is August 10th, 2015.</p>
 	<div>In Partnership with<br/>
 		<a href="http://eyebeam.org/" target="_blank"><img src="/images/eyebeam_logo_200.png" /></a>
 	</div>