Text updates to Marketplace page from Bug 728349

apps/marketplace/templates/marketplace/marketplace.html

@@ -31,8 +31,8 @@
 
   <aside id="app-developer" class="span3 offset1">
     <h3>App developer?</h3>
-    <p>You can already submit your app to the Mozilla Marketplace.</p>
-    <p><a href="https://developer.mozilla.org/en/Apps/Submitting_an_app">Find out how »</a></p>
+    <p>Learn more about the Mozilla Marketplace coming soon.</p>
+    <p><a href="https://developer.mozilla.org/mwc">Find out how »</a></p>
   </aside>
 
   </div>