code: function getRoutes(req, res) {
          var index = {
              name: about.name,
              version: about.version,
              description: about.description,
              routes: app.routes
          };
          return res.json(index);
      }
docs: provides an overview of available API, state, etc.
  
  @param req unused.
  @param res body is an informal JSON that can be used for health monitoring, for example.
  @return {*} unspecified value.