--- a/goduf.go	Sat Mar 18 10:21:54 2017 +0100
+++ b/goduf.go	Sat Mar 18 10:47:27 2017 +0100
@@ -22,6 +22,10 @@
 
 package main
 
+// Installation:
+//
+// % go get hg.lilotux.net/golang/mikael/goduf
+
 import (
 	"crypto/sha1"
 	"encoding/hex"