code: public Content getPackageSummaryHeader(PackageDoc pkg) {
          Content pkgName = getTargetProfilePackageLink(pkg,
                      "classFrame", new StringContent(pkg.name()), profile.name);
          Content heading = HtmlTree.HEADING(HtmlTag.H3, pkgName);
          HtmlTree li = HtmlTree.LI(HtmlStyle.blockList, heading);
          addPackageDeprecationInfo(li, pkg);
          return li;
      }
docs: {@inheritDoc}