Re-format roadmap

README.md

@@ -70,52 +70,46 @@ stone and may change in the future. Please report any bugs you find to the
 
 ## Roadmap
 
-Late 2023 (These have been implemented):
-- Top-level entities
-  - Type definitions
-    - Methods
-  - Defined and external functions
-- Type system
-  - Strict, static, bottom-up type inference
-  - Pointers
-  - Arrays
-  - Slices
-  - Structs
-  - Interfaces
-- Expressions and control structures
-  - Literals adapt to types via bottom-up type inference
-  - Assignment
-  - Variable declaration
-  - Variable access
-  - Function calls
-  - Method calls
-  - Interface behavior calls
-  - Operations
-  - Casting
-  - Blocks
-  - If/else
-  - Loops
+Q4 2023:
+- [x] Type definitions
+- [x] Methods
+- [x] Defined and external functions
+- [x] Strict, static, bottom-up type inference
+- [x] Pointers
+- [x] Arrays
+- [x] Slices
+- [x] Structs
+- [x] Interfaces
+- [x] Integer, floating point, string, struct, and array Literals
+- [x] Assignment
+- [x] Variables
+- [x] Function, method, and interface behavior calls
+- [x] Operations
+- [x] Casting
+- [x] Blocks
+- [x] If/else
+- [x] Loops
 
 Q1 2024:
-- Union types (carry type information)
-- Match statements
-- Modules
-- Mutable/immutable variables
-- For/range loops
+- [x] Union types (carry type information)
+- [x] Match statements
+- [x] Modules
+- [ ] Mutable/immutable variables
+- [ ] For/range loops
 
 Q2 2024:
-- Basic, non-final standard library routines
-- Conditional compilation
-- Shared library compilation
-- Constants
-- Vararg
-  - FSPL vararg using Slices
-  - Optional per-function C-style vararg for compatibility
+- [ ] Basic, non-final standard library routines
+- [ ] Conditional compilation
+- [ ] Shared library compilation
+- [ ] Constants
+- [ ] Vararg
+  - [ ] FSPL vararg using Slices
+  - [ ] Optional per-function C-style vararg for compatibility
 
 Q3 2024:
-- Generics
-- Ownership system
-- Lightweight, modularized (and of course, totally optional) standard library to replace those written in Q2
+- [ ] Generics
+- [ ] Ownership system
+- [ ] Lightweight, modularized (and of course, totally optional) standard library to replace those written in Q2
 
 At the beginning of Q4 2024, a 1.0 version of the language will be released.