`<https://github.com/g0v/domain/commit/8d9516d53cb3b35e85ef0124a04d138ac83ba81b|8d9516d5>` - 更新 slack join link
`<https://github.com/g0v/domain/commit/7575698c8f6135f5f4d6720c04ec6af8c7b40b49|7575698c>` - update <http://join.g0v.tw|join.g0v.tw>