code: public void buildAnnotationTypeSignature(XMLNode node, Content annotationInfoTree) {
          StringBuilder modifiers = new StringBuilder(
                  annotationTypeDoc.modifiers() + " ");
          writer.addAnnotationTypeSignature(Util.replaceText(
                  modifiers.toString(), "interface", "@interface"), annotationInfoTree);
      }
docs: Build the signature of the current annotation type.
  
  @param node the XML element that specifies which components to document
  @param annotationInfoTree the content tree to which the documentation will be added