[phodav] Update README

[Marc-André Lureau <malureau src gnome org>]

commit 65eb03304c82f8a1a0cf957d776036fe3ae1b253
Author: Marc-André Lureau <marcandre lureau gmail com>
Date:   Thu May 23 13:48:09 2019 +0000

    Update README

 README | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/README b/README
index fa82acd..f08ca92 100644
--- a/README
+++ b/README
@@ -21,11 +21,11 @@ contribution!
 
 = Contributing
 
-    git clone git://git.gnome.org/phodav
+    git clone https://gitlab.gnome.org/GNOME/phodav.git
 
     http://lists.freedesktop.org/mailman/listinfo/spice-devel
 
 Please report bug there:
 https://bugzilla.gnome.org/enter_bug.cgi?product=phodav
 
-Forking and sending github pull requests is also welcome.
\ No newline at end of file
+Forking on gitlab and making pull requests is recommended, as it runs CI test.
\ No newline at end of file