Adding a new github page

Actually, github generate every .md file you uploaded to the server.

As for this page, you could visit it by ‘https://neutron3529.github.io/test’

For normal .md file, it is. but for Readme.md, you should just visit its folder, i.e., visit https://neutron3529.github.io/nginx if you upload a file nginx/README.md

If you’re aiming at creating a reuseable page, using relative path could be a better choice.