Fixing typos / grammar in cds2014.

native_client_sdk/src/doc/nacldev/clipboard_web.inc

 Clipboard
 =========
 
 Many of the steps in this tutorial will be easier to copy and paste
 into the Dev Environment.
 To copy and paste in the Dev Environment web page,
-you can use the keyboard or the menu options under (|chrome_menu|).
+you can use the keyboard or the menu options (top right corner |chrome_menu|).
 
 .. |chrome_menu| raw:: html
 
   ☰ → Edit
 
 On your platform use:
 
   * |copy_key| to Copy
   * |paste_key| to Paste
 
@@ skipping 13 matching lines @@
 
   <span id="paste_key">Loading...</span>
   <script>
   var tag = document.getElementById('paste_key');
   if (navigator.appVersion.indexOf('Mac') >= 0) {
     tag.innerHTML = '&#8984;-V';
   } else {
     tag.innerHTML = 'Ctrl-V';
   }
   </script>