code: public void addAnnotationDetailsTreeHeader(TypeElement typeElement,
              Content memberDetailsTree) {
          if (!writer.printedAnnotationFieldHeading) {
              memberDetailsTree.addContent(writer.getMarkerAnchor(
                      SectionName.ANNOTATION_TYPE_FIELD_DETAIL));
              Content heading = HtmlTree.HEADING(HtmlConstants.DETAILS_HEADING,
                      contents.fieldDetailsLabel);
              memberDetailsTree.addContent(heading);
              writer.printedAnnotationFieldHeading = true;
          }
      }
docs: {@inheritDoc}