It's great to see more languages supported across more operating systems, though outside of iOS app development I am exceedingly dubious of the usefulness of Swift.
For those unfamiliar, confused, or otherwise opposed to the naming of the Windows Subsystem for Linux, I would highly suggest reading chapter 2 of Windows Internals: Seventh Edition, which describes how Windows supported POSIX and OS/2 through its "subsystem" model, and how WSL fits into that model and what additional changes were required. The naming of "Windows Subsystem for Linux" makes perfect sense in this Windows OS centric context.
You'll notice in this case only the headline refers to code as "codes." It is referred to as "source code" in the rest of the article. Probably a mistake by the editor.