is
      means attributes do not have to be quoted, and some elements
      (such as <code>br</code>) do not require a closing tag.</dd>
      <dt><code>matchClosing (boolean)</code></dt>
      <dd>Controls whether the mode checks that close tags match the
      corresponding opening tag, and highlights mismatches as errors.
      Defaults to true.</dd>
      <dt><code>alignCDATA (boolean)</code></dt>
      <dd>Setting this to true will force the opening tag of CDATA
      blocks to not be indented.</dd>
  