diff --git a/Readme.md b/Readme.md
index 4a5f48c8..2c8b56ce 100644
--- a/Readme.md
+++ b/Readme.md
@@ -3,5 +3,6 @@
 ## TODO
 
 - [ ] Listen on `resize` event *coming* from the pty.
-- [ ] Add support for zsh.
+- [ ] Add support for zsh and other popular shells
 - [ ] Figure out process title extraction on other platforms.
+- [ ] Define extensibility surface and APIs