code: public Content getNavLinkNext() {
          Content li;
          if (nextProfile == null) {
              li = HtmlTree.LI(nextprofileLabel);
          } else {
              li = HtmlTree.LI(getHyperLink(pathToRoot.resolve(DocPaths.profileSummary(
                      nextProfile.name)), nextprofileLabel, "", ""));
          }
          return li;
      }
docs: Get "NEXT PROFILE" link in the navigation bar.
  
  @return a content tree for the next link