[gssdp] doap: Fix some links

[Jens Georg <jensgeorg src gnome org>]

commit 951a6adc78eca903fae3e1b75d5c321403d0e71f
Author: Jens Georg <mail jensge org>
Date:   Sun Jun 20 15:37:23 2021 +0200

    doap: Fix some links

 gssdp.doap | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gssdp.doap b/gssdp.doap
index 8776f7c..ab85936 100644
--- a/gssdp.doap
+++ b/gssdp.doap
@@ -15,10 +15,10 @@ discovery and announcement over SSDP for GUPnP.</description>
 
   <homepage
   rdf:resource="http://gupnp.org"; />
-  <mailing-list
-  rdf:resource="http://mail.gnome.org/mailman/listinfo/gupnp-list"; />
+  <support-forum
+  rdf:resource="https://discourse.gnome.org/tag/gupnp"; />
   <download-page
-  rdf:resource="http://gupnp.org/download"/>
+  rdf:resource="https://download.gnome.org/sources/gssdp/"/>
   <bug-database
   rdf:resource="https://gitlab.gnome.org/GNOME/gssdp/issues/"; />