fix typo reported by email

_includes/frontpage/sw-apps-intro.html

@@ -4,7 +4,7 @@ <h2 id='applications'>
 
 <p>
     With the new infrastructure, we are able to build robust applications 
-    that will push towards a more decentralised web and empower knew kinds 
+    that will push towards a more decentralised web and empower new kinds 
     of innovation and exploration. Building on the right foundations, means 
     the core aspects of connectivity and syncing between devices will 
     already be accounted for so the focus can shift to functionality and