text: var path = require("path");
  
  module.exports = function(app) {
  
    app.get("/", function(req, res) {
      res.sendFile(path.join(__dirname, "../public/index.html"));
    });
  
   app.get("/exercise", function(req, res) {
      res.sendFile(path.join(__dirname, "../public/exercise.html"));
    });
  
    app.get("/stats", function(req, res) {
      res.sendFile(path.join(__dirname, "../public/stats.html"));
    });
  };