code: public String renderLinkRelationHtml(io.wcm.caravan.hal.docs.impl.model.Service service, LinkRelation linkRelation)
        throws IOException {
      Map<String, Object> model = ImmutableMap.<String, Object>builder()
          .put("service", service)
          .put("linkRelation", linkRelation)
          .build();
      return render(service, model, linkRelationTemplate);
    }
docs: Generate HTML file for link relation.
  @param service Service
  @param linkRelation Link relation
  @return Rendered markup
  @throws IOException