[gimp] NEWS: add the new dynamics.

[Jehan Pagès <jehanp src gnome org>]

commit ecf5a6e9a31fe3149a9d61989039cf95329d0c9d
Author: Jehan <jehan girinstud io>
Date:   Wed Jun 14 20:11:01 2017 +0200

    NEWS: add the new dynamics.

 NEWS |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index 818c5ab..3177a0d 100644
--- a/NEWS
+++ b/NEWS
@@ -160,6 +160,7 @@ Painting:
   - Allow painting on transparent layers with modes other than normal.
   - Add a specialized convolution algorithm for the hardness blur
     to make it faster.
+  - New dynamics "Pressure Size".
 
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