[gimp-help] Fixed wikipedia link

[Marco Ciampa <marcoc src gnome org>]

commit 82fc8f09a27b9751af928b96d30158992b94140f
Author: Marco Ciampa <ciampix posteo net>
Date:   Wed Jan 1 10:47:00 2020 +0100

    Fixed wikipedia link

 src/using/fileformats.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/using/fileformats.xml b/src/using/fileformats.xml
index 4f516e193..3590b8ef3 100644
--- a/src/using/fileformats.xml
+++ b/src/using/fileformats.xml
@@ -274,7 +274,7 @@
       </para>
       <para>
         More information in <ulink 
-url="http://en.wikipedia/wiki/High_Efficiency_Image_File_Format";>Wikipedia</ulink>.
+url="http://en.wikipedia.org/wiki/High_Efficiency_Image_File_Format";>Wikipedia</ulink>.
       </para>
       <figure>
         <title>The HEIF/HEIC Export dialog</title>