[yelp] Replace cgit with gitlab URL in README

[Andre Klapper <aklapper src gnome org>]

commit 8a1ecb8dfc1a6b3b9335a2ca07461624467b72a3
Author: Andre Klapper <a9016009 gmx de>
Date:   Fri Apr 24 14:49:48 2020 +0200

    Replace cgit with gitlab URL in README

 README | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/README b/README
index b1a72b97..fa3004b9 100644
--- a/README
+++ b/README
@@ -11,7 +11,7 @@ these to build and manage your documentation. For more information:
 Yelp is developed in GNOME git, and mirrored to GitHub. Please do all
 development in GNOME:
 
-  http://git.gnome.org/browse/yelp/
+  https://gitlab.gnome.org/GNOME/yelp/
 
 Bugs are tracking in GNOME Bugzilla, product yelp: