[gimp] NEWS: add Korean translation update.

[Jehan Pagès <jehanp src gnome org>]

commit 740bfa5c75aa5469d4fcad357f189cecf90fc748
Author: Jehan <jehan girinstud io>
Date:   Thu Apr 26 03:03:37 2018 +0200

    NEWS: add Korean translation update.

 NEWS |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index a6724fd..1c604e1 100644
--- a/NEWS
+++ b/NEWS
@@ -43,8 +43,8 @@ Assets / Resources:
 
 Translations:
 
-  - 5 translations were updated: Catalan, Danish, Finnish, Polish,
-    Swedish.
+  - 6 translations were updated: Catalan, Danish, Finnish, Korean,
+    Polish, Swedish.
 
 Overview of Changes from GIMP 2.10.0 RC1 to GIMP 2.10.0 RC2
 ===========================================================