Copyedit pass on new doc

chrome/common/extensions/docs/whats_new.html

Index: chrome/common/extensions/docs/whats_new.html
===================================================================
--- chrome/common/extensions/docs/whats_new.html	(revision 57248)
+++ chrome/common/extensions/docs/whats_new.html	(working copy)
@@ -303,21 +303,21 @@
 <ul id="changes-listing">
   <li class="section"><b>New APIs</b>
     <ul>
-      <li>The <a href="contextMenus.html">Context Menus API</a> allows you to
+      <li>The <a href="contextMenus.html">context menus API</a> allows you to
         add context menus to pages or specific objects on a page
-      </li><li>The <a href="cookies.html">Cookies API</a> allows you to manage the
+      </li><li>The <a href="cookies.html">cookies API</a> allows you to manage the
         browser's cookie system 
-      </li><li>The <a href="idle.html">Idle API</a> allows you to detect when the
+      </li><li>The <a href="idle.html">idle API</a> allows you to detect when the
         machine's idle state changes
     </li></ul>
-  </li><li class="section"><b>Manifest Changes</b>
+  </li><li class="section"><b>Manifest changes</b>
     <ul>
       <li>The <a href="manifest.html#geolocation">geolocation</a> permission
         gives an extension access to the user's physical location
       </li><li><a href="match_patterns.html">Match patterns</a> can now select all
-        schemes or all urls
+        schemes or all URLs
       </li><li>Access to file:/// URLs no longer triggers the "access to your machine"
-        security warning, but now requires user opt-in from the extension
+        security warning, but now requires user opt-in from the extensions
         management page
     </li></ul>
   </li><li class="section"><b>Additions to existing APIs</b>
@@ -331,10 +331,10 @@
     </li></ul>
   </li><li class="section"><b>New experimental APIs</b>
     <ul>
-      <li>The <a href="experimental.omnibox.html">Omnibox API</a> allows you to
-        add functionality to the browser's omnibox
-      </li><li>The <a href="experimental.infobars.html">Infobars API</a> allows you
-        to add UI panels across the top of a tab
+      <li>The <a href="experimental.omnibox.html">omnibox API</a> allows you to
+        add functionality to the browser's address bar
+      </li><li>The <a href="experimental.infobars.html">infobars API</a> allows you
+        to add a UI panel across the top of a tab
     </li></ul>
 </li></ul>
 </div>