Fix broken link to doc for configuration file. (vuejs-templates#573)

Author: pastdevr

template/test/e2e/nightwatch.conf.js

@@ -1,7 +1,7 @@
 require('babel-register')
 var config = require('../../config')
 
-// http://nightwatchjs.org/guide#settings-file
+// http://nightwatchjs.org/getingstarted#settings-file
 module.exports = {
   src_folders: ['test/e2e/specs'],
   output_folder: 'test/e2e/reports',