Update the TODO list in the README

README.md

@@ -8,31 +8,30 @@ A Scheme interpreter.
 A whole ton of stuff. Very much a work in progress. And this list is by no means
 exhaustive, though I will continue to add to it as I think of things...
 
-### `sibil` -- The actual binary
+### `sibil` — The actual binary
 
 - [ ] Environments
 - [ ] REPL
 - [ ] Standard library stuff
 
-### `sibillexer` -- The lexer
+### `sibillexer` — The lexer
 
-- [ ] Make the Lexer Peekable
+- [x] Make the Lexer Peekable
-- [ ] Use character iterators (`str.chars()`) instead of my own code to iterate
+- [x] Use character iterators (`str.chars()`) instead of my own code to iterate
   through characters in the input
 - [ ] Rational numbers
 - [ ] Complex numbers
 - [ ] Quasiquotes (this is not context free apparently, so I expect Badness)
 - [ ] Proper error handling
 
-### `sibilparser` -- The parser
+### `sibilparser` — The parser
 
-- [ ] Programs
-- [ ] SExpressions: Atoms
-- [ ] SExpressions: Lists
 - [ ] Proper error handling
 
-### `sibiltypes` -- The type library
+### `sibiltypes` — The type library
 
+- [ ] Bools
+- [ ] Chars
 - [ ] Complex numbers
 - [ ] Addition of disparate types of numbers
 - [ ] Subtraction of numbers