another usueful directory, this time about Seoul! as mayor…

another usueful directory, this time about Seoul!
as mayor in cityonchain, and CEO of Seoul on Chain, this is a must: https://dir.sv/category/8a6164d8d3b6f0fa33810232921861bb6eb9ce1203d031b142ae7e9416f9e9d0 help us making the Seoul directory most vibrant