Korean translation to resources

[SelectBillyFromC]

trafficstars

Maps to issue: https://github.com/SasanLabs/VulnerableApp/issues/420

Borrowing/following from the excellent practice of https://github.com/SasanLabs/VulnerableApp/issues/425 !

This translation would involve cross-referencing American and Korean programming resources, such as MDN Web Docs, for accuracy.

Anything that does not have a known Korean translation or has been recognized and used in its English form by Korean users will be left as is in the doc without translation.

Thank you. If anyone has suggestions, please feel free to do so.