index: fix sup link

diff --git a/index.mdwn b/index.mdwn
index 7006b6ecccb26b0e3d7c544840f17cdaf621121d..29c1ae503f2c259378f6ca38c30845884d69fcc0 100644 (file)
--- a/index.mdwn
+++ b/index.mdwn
@@ -16,7 +16,7 @@ Because dealing with your mail can be so much better.
   that you can keep your inbox tamed and focus on what really matters
   in your life, (which is surely not email).
 
-* Notmuch is an answer to [Sup](http://sup.rubyforge.org/).
+* Notmuch is an answer to [Sup](http://supmua.org/).
   Sup is a very good email program written by William Morgan (and
   others) and is the direct inspiration for Notmuch. Notmuch began as
   an effort to rewrite performance-critical pieces of Sup in C rather