text: export default function (app) {
    app.get('/', function (req, res) {
      res.render('index', { title: 'index' })
    })
    app.get('/topic', function (req, res) {
      res.render('topic', { title: 'topic' })
    })
    app.get('/favorites', function (req, res) {
      res.render('favorites', { title: 'favorites' })
    })
  }
  