code: function setupSymlinks (module, modulesDir, callback) {
  
      let details = module.split('/');
      let modulePath = resolve(NODE_MODULES, details[1]);
      let devModulePath = resolve(modulesDir, module);
  
      rimraf(modulePath, err => {
  
          if (err) {
              return callback(err);
          }
  
          fs.symlink(devModulePath, modulePath, err => {
  
              if (err) {
                  return callback(err);
              }
  
              callback();
          });
      });
  }
docs: this will remove the module from the registry and create all the required links