[doc] Stick with quagga.net for consistency (#436)
diff --git a/doc/ripngd.8 b/doc/ripngd.8
index 2ec5563..d9d8201 100644
--- a/doc/ripngd.8
+++ b/doc/ripngd.8
@@ -112,6 +112,6 @@
 See
 .BI http://www.zebra.org
 and
-.BI http://www.quagga.org
+.BI http://www.quagga.net
 or the Info file for an accurate list of authors.