[gimp-help] Fixes link

[Jordi Mas <jmas src gnome org>]

commit e0f352afa441fd1d232a67936363548884e014b3
Author: Jordi Mas <jmas softcatala org>
Date:   Thu Aug 22 12:09:48 2019 +0200

    Fixes link

 src/appendix/bibliography.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/appendix/bibliography.xml b/src/appendix/bibliography.xml
index 341e99e44..059163fb2 100644
--- a/src/appendix/bibliography.xml
+++ b/src/appendix/bibliography.xml
@@ -729,7 +729,7 @@
       <abbrev>WKPD-CA</abbrev>
       <title>Wikipedia - Cellular Automata</title>
       <releaseinfo>
-        <ulink url="http://en.wikipedia.org/wiki/Bump_Mapping";>
+        <ulink url="http://en.wikipedia.org/wiki/Cellular_Automata";>
           http://en.wikipedia.org/wiki/Cellular_Automata
         </ulink>
       </releaseinfo>