diff --git a/README.md b/README.md
index ab4a866..8bb3bf1 100644
--- a/README.md
+++ b/README.md
@@ -7,14 +7,15 @@ I want to learn Rust and see how much effort I can put into making an interopera
 # Roadmap
 
 - [x] Execute commands
-- [ ] Parse commands
+- [x] Parse commands
 - [ ] Variables
 - [ ] Environment variables
 - [ ] Builtins
-  - [ ] `cd`
+  - [x] `cd`
   - [ ] `set`
   - [ ] `alias`
   - [ ] `type`
 - [ ] Command-line flags
 - [ ] PS1
 - [ ] Execute code from a file
+- [ ] Clean error handling