Fixed a minor typo in the To Do list

Change-Id: Ifea285b8c7b8abc9cbee5ca2470dfd3e86883195
diff --git a/TODO.md b/TODO.md
index 2521a35..cbdb314 100644
--- a/TODO.md
+++ b/TODO.md
@@ -2,7 +2,7 @@
 1. Make limit-years prettier and inclusive/exclusive with double check-boxes
 2. Make statistics about the graph: biggest K_n, diameter, etc...
 3. Make circle-mode + year-limit = smaller-circle-mode
-~~4. Modify the autocomplete so that eliminated nodes don't appear~~
+4. ~~Modify the autocomplete so that eliminated nodes don't appear~~
 5. Separate non-connex nodes in circle-mode
 6. Add all these TODO items to the bug tracker