[pango/misc-doc-fixups: 3/7] docs: Add a missing image

[Matthias Clasen <matthiasc src gnome org>]

commit f57ac8a80197774718cdf5fd1b5d5290e3a5da3b
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Dec 10 19:24:19 2021 -0500

    docs: Add a missing image

 docs/pango.toml.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/docs/pango.toml.in b/docs/pango.toml.in
index 26226148..77b860a2 100644
--- a/docs/pango.toml.in
+++ b/docs/pango.toml.in
@@ -72,6 +72,7 @@ content_images = [
   "pipeline-dark.png",
   "rects1.png",
   "rects2.png",
+  "rects3.png",
   "arabic-markup.png",
   "blue-text.png",
   "align-left.png",