Quotation marks

[xfq]

https://w3c.github.io/klreq/#writing-dir-mark

In horizontal writing mode, we currently mention these quotation marks:

‘ [U+2018], ’ [U+2019], “ [U+201C], ” [U+201D]

Do we need to mention the quotation marks used in North Korea? They use 《 》 according to:

• https://ko.wikisource.org/wiki/%EC%A1%B0%EC%84%A0%EB%A7%90_%EA%B7%9C%EB%B2%94%EC%A7%91_(1987)/%EB%AC%B8%EC%9E%A5%EB%B6%80%ED%98%B8%EB%B2%95#%EC%A0%9C11%ED%95%AD._%EC%9D%B8%EC%9A%A9%ED%91%9C(%E3%80%8A_%E3%80%8B)
• https://upload.wikimedia.org/wikipedia/commons/0/0b/%EC%A1%B0%EC%84%A0%EB%A7%90%EA%B7%9C%EB%B2%94%EC%A7%91%282010%29.pdf