Format page numbers in pagination

Change-Id: I66a5ed4c9d01e5df5ec43a3acc07a80403a0734b
diff --git a/lib/Kalamar.pm b/lib/Kalamar.pm
index b850be0..97bb173 100644
--- a/lib/Kalamar.pm
+++ b/lib/Kalamar.pm
@@ -400,7 +400,7 @@
 
 =head2 COPYRIGHT AND LICENSE
 
-Copyright (C) 2015-2021, L<IDS Mannheim|https://www.ids-mannheim.de/>
+Copyright (C) 2015-2022, L<IDS Mannheim|https://www.ids-mannheim.de/>
 Author: L<Nils Diewald|https://www.nils-diewald.de/>
 
 Kalamar is developed as part of the L<KorAP|http://korap.ids-mannheim.de/>