freebsd/*,netbsd/*,openbsd/*,sunos/*: add Korean translation

[CodePsy-2001]

• [x] The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• [x] The page(s) have at most 8 examples.
• [x] The page description(s) have links to documentation or a homepage.
• [x] The page(s) follow the content guidelines.
• [x] The PR title conforms to the recommended templates.
• Version of the command being documented (if known):

[tldr-bot]

Hello! I've noticed something unusual when checking this PR:

• The page pages.ko/freebsd/look.md is outdated, based on the command contents itself.
• The page pages.ko/sunos/prstat.md is outdated, based on the command contents itself.

Is this intended? If so, just ignore this comment. Otherwise, please double-check the commits.

[sebastiaanspeck]

Hello! I've noticed something unusual when checking this PR:

• The page pages.ko/freebsd/look.md is outdated, based on the command contents itself.
• The page pages.ko/sunos/prstat.md is outdated, based on the command contents itself.

Is this intended? If so, just ignore this comment. Otherwise, please double-check the commits.

@CodePsy-2001 could you please take a look at these two files?

[tldr-bot]

Hello! I've noticed something unusual when checking this PR:

• The page pages.ko/sunos/prstat.md is outdated, based on the command contents itself.

Is this intended? If so, just ignore this comment. Otherwise, please double-check the commits.

[CodePsy-2001]

I updated it to reflect the latest changes. @sebastiaanspeck Thank you for the double check.