<p>The "Diff" option allows you to compare the file's content with that of another, and have the differences between the two displayed.  This option will only work for text-based files, such as .txt or .html files and is useful when reviewing files that are often updated.</p>
<ul>
  <li>Enter the filename or the path to the second file (or click "Browse" to select a path) to be compared to and click the 'Diff' button. (Eg. '/templates/luna/version2.html')</li>
  <li>The differences between the two files will be displayed in a new screen.
  <ul>
    <li>Lines that are prefaced by a minus sign (-) are lines which appear in the first file but not in the second.  </li>
    <li>Lines that are prefaced by a plus sign (+) are lines which appear in the second file but not in the first. </li> 
  </ul>
  </li>
</ul>
