Add "let memo" syntax for automatic memoization

1 files changed, 1 insertions, 1 deletions

diff --git a/todo.md b/todo.md
index 534abcc..4efb8d4 100644
--- a/todo.md
+++ b/todo.md
@@ -2,6 +2,6 @@
 
 In order of priority
 
-- Memoize pure top-level let-bindings with `let memo`
 - Add a `catch` builtin for catching fatal errors
+- Add :keyword data type, use in core functions
 - Write tests!