title: Embedding "com.apple.ibooks.display-options.xml" file into epub
body: <p>I want to add the <code>com.apple.ibooks.display-options.xml</code> file which is described in the ibooks documentation for publishers.</p>
  
  <p>I am using sigil to create my books but i can't add this file within my epub book file.</p>
  
  <p>Can someone show me how to do it?</p>