[gegl] docs/web: add a list of software using GEGL

[Øyvind Kolås <ok src gnome org>]

commit 357ddd837083e77cc746f0e9e19b58b20cc53f2e
Author: Øyvind Kolås <pippin gimp org>
Date:   Mon Feb 27 11:21:49 2017 +0100

    docs/web: add a list of software using GEGL

 docs/index.txt.in |   14 ++++++++++----
 1 files changed, 10 insertions(+), 4 deletions(-)
---
diff --git a/docs/index.txt.in b/docs/index.txt.in
index 64b2e1f..8ee94cd 100644
--- a/docs/index.txt.in
+++ b/docs/index.txt.in
@@ -10,12 +10,18 @@ image::images/GEGL.png[GEGL]
 
 *GEGL* (Generic Graphics Library) is a graph based image processing framework.
 
-With GEGL you chain together link:operations.html[image processing operations] represented by nodes
-into a graph. GEGL provides such operations for loading and storing images,
-adjusting colors, filtering in different ways, transforming and compositing images.
+With GEGL you chain together link:operations.html[image processing operations]
+represented by nodes into a graph. GEGL provides operations for image loading
+and storing, color adjustments, and other different forms of image
+transformation, filtering and compositing. Some software using GEGL is
+link:http://www.gimp.org/[GNU Image Manipulation Program],
+link:http://www.imgflo.org/[imgflo],
+link:https://wiki.gnome.org/Apps/Photos[GNOME Photos] and
+link:https://github.com/the-grid/iconographer[iconographer].
 
 link:operations.html[Operations reference gallery]::
-  A page showcasing all the various gegl image processing operations.
+  Documentation and visual test reference for most GEGL image processing
+  operations.
 link:features.html[GEGL Feature list]::
   The "feature list", a technical specification of what GEGL can do.
 link:glossary.html[GEGL glossary]::