Git.io deprecation notice

[npmmirror]

Hello, I've found that some of your files in this repo is still using https://git.io/, and this service will be discontinued in the future. (ref: Git.io deprecation)
Theses files are: lib/config.ts

This is an automated message from NPMMirror(https://github.com/npmmirror), a bot developed by Nova Kwok(https://github.com/n0vad3v).