[gimp-web] Fix a typo

[Alexandre Prokoudine <aprokoudine src gnome org>]

commit 1d0c27f127237c038e0d22633149cebfb818bf9b
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Sun Nov 22 19:55:05 2015 +0300

    Fix a typo

 content/news/2015-11-18 20-years-of-gimp.md |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/content/news/2015-11-18 20-years-of-gimp.md b/content/news/2015-11-18 20-years-of-gimp.md
index 8a18b0b..bd004f7 100644
--- a/content/news/2015-11-18 20-years-of-gimp.md       
+++ b/content/news/2015-11-18 20-years-of-gimp.md       
@@ -3,7 +3,7 @@ Date: 2015-11-22T09:32:24-05:00
 Category: News
 Authors: Wilber
 
-This week the GIMP project celebrates its 20th anniversay.
+This week the GIMP project celebrates its 20th anniversary.
 
 Back in 1995, University of California students, Peter Mattis and Kimball Spencer, were members of the 
eXperimental Computing Facility, a Berkeley campus organization of undergraduate students enthusiastic about 
computers and programming. In June of that year, the two hinted at their intentions to write a free graphical 
image manipulation program as a means of giving back to the free software community.