[pan] fix typo in README.org

[Dominique Dumont <ddumont src gnome org>]

commit ce3600c88e126dcd4ca314c76213e029b7323483
Author: Dominique Dumont <dod debian org>
Date:   Thu Dec 23 09:18:53 2021 +0100

    fix typo in README.org

 README.org | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/README.org b/README.org
index 3e7d02a..5eaa26c 100644
--- a/README.org
+++ b/README.org
@@ -77,7 +77,7 @@ Pan requires these libraries:
 
 The following libraries add extra features but are optional:
 
-- [[http://gtkspell.sourceforge.net][GtlSpell]] 2.0.7 or higher for spellchecker support
+- [[http://gtkspell.sourceforge.net][GtkSpell]] 2.0.7 or higher for spellchecker support
   (GtkSpell 2.0.16 or higher when using GTK+ 3)
 - [[http://www.abisource.com/projects/enchant/][Enchant]] 1.6.0 or higher for spellchecker support
 - [[http://www.galago-project.org/news/index.php][libnotify]] 0.4.1 or higher for notifications