[NetworkManager-pptp] appdata: load images from gitlab.gnome.org

[Lubomir Rintel <lkundrak src gnome org>]

commit 93aa8d9a7f7d798b5e4fde22accb96cb7311c9af
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Thu Jun 7 18:42:37 2018 +0200

    appdata: load images from gitlab.gnome.org

 appdata/network-manager-pptp.metainfo.xml.in | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/appdata/network-manager-pptp.metainfo.xml.in b/appdata/network-manager-pptp.metainfo.xml.in
index 447727b..5a55e50 100644
--- a/appdata/network-manager-pptp.metainfo.xml.in
+++ b/appdata/network-manager-pptp.metainfo.xml.in
@@ -25,11 +25,11 @@
 
   <screenshots>
     <screenshot type="default">
-      <image width="800" 
height="498">https://git.gnome.org/browse/network-manager-pptp/plain/appdata/pptp.png</image>
+      <image width="800" 
height="498">https://gitlab.gnome.org/GNOME/NetworkManager-pptp/raw/master/appdata/pptp.png</image>
     </screenshot>
     <screenshot>
       <caption>The advanced options dialog</caption>
-      <image width="800" 
height="619">https://git.gnome.org/browse/network-manager-pptp/plain/appdata/pptp-advanced.png</image>
+      <image width="800" 
height="619">https://gitlab.gnome.org/GNOME/NetworkManager-pptp/raw/master/appdata/pptp-advanced.png</image>
     </screenshot>
   </screenshots>