[devhelp] NEWS file: add news for version 3.26.1

[Sébastien Wilmet <swilmet src gnome org>]

commit 9cf1dd2917762171ae9f4e676047bc4f42ee5543
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Dec 9 12:06:53 2017 +0100

    NEWS file: add news for version 3.26.1

 NEWS |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index ff366e4..13397d2 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,15 @@
 ==============
+Version 3.26.1
+==============
+
+- Move New Tab button on the right side of the headerbar.
+
+Updated translations: ca, ca@valencia, da, el, nb, nl
+
+Many thanks to all contributors: Sébastien Wilmet, Ask Hjorth Larsen,
+Efstathios Iosifidis, Nathan Follens, Kjartan Maraas, Xavi Ivars
+
+==============
 Version 3.26.0
 ==============