add a link to libravatar

diff --git a/doc/todo/avatar.mdwn b/doc/todo/avatar.mdwn
index f0599e4ed94fdf8695272753d5f3708814b8cf21..91f924fa126fd25f296de803d8830d4627d4ddb4 100644 (file)
--- a/doc/todo/avatar.mdwn
+++ b/doc/todo/avatar.mdwn
@@ -58,3 +58,8 @@ The hash is calculated from the user's email address. If the user's email
 is not known, skip it. 
 
 End. :P
+
+---
+
+[libravatar](https://launchpad.net/libravatar) is a federated avatar
+system. Young but might be the right way to get avatars eventually.