docs: N Preview 1 Landing Page fixes

- minor fixes for Preview Landing page, Resource section

Change-Id: I8116966ba06f6778cb976d7919836fd0d6154e33

docs/html/jd_collections.js

@@ -147,6 +147,14 @@ var RESOURCE_COLLECTIONS = {
       "preview/support.html"
     ]
   },
+  "preview/landing/more": {
+    "title": "",
+    "resources": [
+      "preview/features/multi-window.html",
+      "preview/features/background-optimization.html",
+      "preview/features/notification-updates.html"
+    ]
+  },
   "google/landing/services": {
     "title": "",
     "resources": [

docs/html/preview/index.jd

@@ -14,7 +14,7 @@ footer.hide=1
       <div class="col-7of16 col-push-9of16">
         <h1 class="dac-hero-title">Android N Developer Preview</h1>
         <p class="dac-hero-description">
-          Get ready for Android N!
+          Get ready for the next version of Android!
           <strong>Test your apps</strong> on a variety of Nexus devices. Support new system
           behaviors to <strong>save power and memory</strong>.
           Extend your apps with <strong>multiwindow UI</strong>,
@@ -48,7 +48,7 @@ footer.hide=1
 <section class="dac-section dac-gray"><div class="wrap">
   <h1 class="dac-section-title">Resources</h1>
   <div class="dac-section-subtitle">
-    Essential information to help you get your apps ready for Android M.
+    Essential information to help get your apps ready for the next version of Android.
   </div>
 
   <div class="resource-widget resource-flow-layout col-16"