chore(protractor): adjust link to docs in comment (angular#3612)

Author: juristr

packages/angular-cli/blueprints/ng2/files/protractor.conf.js

@@ -1,5 +1,5 @@
 // Protractor configuration file, see link for more information
-// https://github.com/angular/protractor/blob/master/docs/referenceConf.js
+// https://github.com/angular/protractor/blob/master/lib/config.ts
 
 /*global jasmine */
 var SpecReporter = require('jasmine-spec-reporter');