[gnome-tweaks] Fix GNOME extensions link

[Evan Welsh <ewlsh src gnome org>]

commit 244686c1964633ff725902ffd8d48d764bb07ed7
Author: João Thallis <joaothallis icloud com>
Date:   Sat Oct 30 23:13:34 2021 +0000

    Fix GNOME extensions link

 gtweak/app.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtweak/app.py b/gtweak/app.py
index 742daa1..b1afe2f 100644
--- a/gtweak/app.py
+++ b/gtweak/app.py
@@ -27,7 +27,7 @@ class ExtensionNotice(Gtk.MessageDialog):
             "{0}\n\n{1}".format(
                 # Translators: Placeholder will be replaced with "GNOME Extensions" in active link form
                 _("Extensions management has been moved to {0}.").format(
-                    '<a 
href="https://gitlab.gnome.org/GNOME/gnome-shell/-/blob/master/subprojects/extensions-app/README.md";>GNOME 
Extensions</a>',
+                    '<a 
href="https://gitlab.gnome.org/GNOME/gnome-shell/-/blob/main/subprojects/extensions-app/README.md";>GNOME 
Extensions</a>',
                 ),
                 # Translators: Placeholder will be replaced with "Flathub" in active link form
                 _("We recommend downloading GNOME Extensions from {0} if your distribution does not include 
it.").format(