gitHub pages URL 404

repo: https://github.com/hello-guoguo/hello-guoguo.github.io-resume

Custom domain: http://www.oiliving.com

URLhttp://www.oiliving.com/test/index.html  OPEN —> Success! Screenshot:


but,
URL : http://www.oiliving.com/.test/index.html OPEN —> Error(404)! Screenshot:


I doubt the reason is folder name ‘.test’,
but I real need folder name as ‘.xxx’,

So how to do,to make it(http://www.oiliving.com/.test/index.html) can be opened successfully?
Please!

I deal it: in folder docs, new a flile ‘_config.yml’ which include the code ‘include: [/.test]’. then all the files in ‘/.test’ can be accessed