Korean translation outdated

[katepark1009]

Description

I've been trying to use the package in a project and found out that Korean translation page(https://github.com/LeeHyungGeun/react-beautiful-dnd-kr) is outdated.
For example, Basic example link( link with You can play with it on webpackbin text) is not working and contents are not synced up with recent doc.

@LeeHyungGeun By any chance, do you have a plan to update it? I can help updating the contents.😄

[lee00286]

Do you still need the Korean translation? I can work on the translation if needed!