[gnome-nibbles] Add Catalan help translation

[Jordi Mas <jmas src gnome org>]

commit 64a882052ca78867f907512f594bb8245b8ea65f
Author: Jordi Mas <jmas softcatala org>
Date:   Sat Jan 5 13:00:55 2019 +0100

    Add Catalan help translation

 help/Makefile.am | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/help/Makefile.am b/help/Makefile.am
index 0f65c8c..e11b484 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -30,6 +30,6 @@ HELP_FILES =  \
        scores.page     \
        legal.xml
 
-HELP_LINGUAS = cs de el es fr hu pl pt_BR sv tr
+HELP_LINGUAS = ca cs de el es fr hu pl pt_BR sv tr
 
 -include $(top_srcdir)/git.mk