[librest] add myself as maintainer

[Günther Wagner <gwagner src gnome org>]

commit 2aa124637c2b93e4952821fe08d656d1f3b6155b
Author: Günther Wagner <info gunibert de>
Date:   Thu Oct 21 12:39:03 2021 +0200

    add myself as maintainer

 librest.doap | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/librest.doap b/librest.doap
index 455aebd..7d92872 100644
--- a/librest.doap
+++ b/librest.doap
@@ -12,6 +12,14 @@
   <bug-database rdf:resource="https://gitlab.gnome.org/GNOME/librest/issues/"; />
   <programming-language>C</programming-language>
 
+  <maintainer>
+    <foaf:Person>
+      <foaf:name>Günther Wagner</foaf:name>
+      <foaf:mbox rdf:resource="mailto:info gunibert de" />
+      <gnome:userid>gwagner</gnome:userid>
+    </foaf:Person>
+  </maintainer>
+
   <maintainer>
     <foaf:Person>
       <foaf:name>Rob Bradford</foaf:name>