Add request for better tred.

diff --git a/doc/todo.html b/doc/todo.html
index af6609ed17ad044abd6f95fca1cf76eff9902a30..76a95b0bbdfacdd8f3d83982716a8c66791885a3 100755 (executable)
--- a/doc/todo.html
+++ b/doc/todo.html
@@ -92,6 +92,8 @@ Support rank=min/max within the context of a cluster.
 <li>
 Adjust graph to allow no edge-node overlap with line segment edges.
 <li>
+Re-implement tred to use a more efficient algorithm.
+<li>
 Write a replacement for smyrna/gvedit/dotty that provides a GUI interface for Graphviz. In addition,
 to the usual functions for viewing, the program should provide widgets for the easy altering of graph
 attributes. There could also be an interface to the gvpr library, to create multiple views. Ideally,