code: protected void addDescription(ClassDoc cd, Content dlTree, SearchIndexItem si) {
          Content link = getLink(new LinkInfoImpl(configuration,
                          LinkInfoImpl.Kind.INDEX, cd).strong(true));
          si.setContainingPackage(utils.getPackageName(cd.containingPackage()));
          si.setLabel(cd.typeName());
          si.setCategory(getResource("doclet.Types").toString());
          Content dt = HtmlTree.DT(link);
          dt.addContent(" - ");
          addClassInfo(cd, dt);
          dlTree.addContent(dt);
          Content dd = new HtmlTree(HtmlTag.DD);
          addComment(cd, dd);
          dlTree.addContent(dd);
      }
docs: Add one line summary comment for the class.
  
  @param cd the class being documented
  @param dlTree the content tree to which the description will be added