[gnome-disk-utility] readme: Add repository link

[Kai Lüke <kailueke src gnome org>]

commit 52ac8dce1dbff4eb15f38e8c4fcfe9d3d3ef200c
Author: Kai Lüke <kailueke riseup net>
Date:   Sun Jul 7 22:00:58 2019 +0200

    readme: Add repository link

 README | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/README b/README
index 2a1acc99..0b6b09cf 100644
--- a/README
+++ b/README
@@ -1,5 +1,7 @@
-gnome-disk-utility provides libraries and applications for dealing
+This gnome-disk-utility repository provides libraries and applications for dealing
 with storage devices.
+Development location:
+https://gitlab.gnome.org/GNOME/gnome-disk-utility
 
 GNOME Disks:
 View, modify and configure disks and media