Update documentation copyright

diff --git a/doc/gssdp-docs.sgml b/doc/gssdp-docs.sgml
index e9f3bee..c7b2365 100644 (file)
--- a/doc/gssdp-docs.sgml
+++ b/doc/gssdp-docs.sgml
@@ -19,6 +19,8 @@
 
     <copyright>
       <year>2009</year>
+      <year>2010</year>
+      <year>2011</year>
       <holder>Nokia Corporation</holder>
     </copyright>