nsists of a <i>tag</i>, an optional
<i>argument</i>, and a <i>body</i>. </p>

<ul>
  <li> The <i>tag</i> is a case-insensitive word that indicates what
  kind of documentaiton is given by the field. </li>
  <li> The optional <i>argument</i> specifies what object, parameter,
  or group is documented by the field. </li>
  <li> The <i>body</i> contains the main contents of the field. </li>
  </ul>

<h2> 1. Field Markup </h2>

<p> Each docstring markup langauge marks fields differently.  The
following table sho