[gegl] docs: update download folder location

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 4bf2e5c05e9a3362f81c1b392ac7ff531230d7ce
Author: Øyvind Kolås <pippin gimp org>
Date:   Fri Jul 20 00:51:19 2018 +0200

    docs: update download folder location
    
    it was still pointing to the 0.3 location. Fixing issue #91 (when
    website soon next gets synced from generated docs).

 docs/index.txt.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/docs/index.txt.in b/docs/index.txt.in
index 746b10dc0..aa71def3f 100644
--- a/docs/index.txt.in
+++ b/docs/index.txt.in
@@ -21,7 +21,7 @@ link:commandline.html[commandline].
 
 The primary repository for the GEGL source code
 link:http://git.gnome.org/browse/gegl/[in GNOME git], and at GIMPs download
-site link:https://download.gimp.org/pub/gegl/0.3/[tarball releases].
+site link:https://download.gimp.org/pub/gegl/0.4/[tarball releases].
 
 GEGL is link:copyright.html[Free Software], and both new functionality in
 link:operation-api.html[new operations] as well as relevant