Open-Set-Go.io Domain has been changed to docs.open-set-go.com

[ymw0407]

The original subdomain of Open-Set-Go.io was https://blog.open-set-go.com . However, I thought that the subdomain called docs was more intuitive for users to understand than the blog, so I changed it.
기존의 Open-Set-Go.io의 서브도메인은 https://blog.open-set-go.com이였습니다. 하지만, 해당 blog보다는 docs라는 서브 도메인이 사용자들이 보다 직관적으로 이해할 수 있다고 생각하였고, 그렇기에 바꾸게 되었습니다.

https://blog.open-set-go.com -> https://docs.open-set-go.com