update docs

README.org

@@ -2,52 +2,45 @@
 #+AUTHOR: Charles Kralapp
 #+OPTIONS: toc:nil num:nil
 
-This project combines a raytracer and an N-body solar system simulation to learn modern C++ (C++03–C++23) through practical implementation.
+This project combines a raytracing in one weekend style raytracer and an N-body solar system simulation to learn modern C++ (C++03–C++23) through practical implementation.
 
 * ✅ Project Goals
-- [ ] Simulate solar system using an N-body gravitational algorithm.
-- [ ] Implement a raytracer for rendering bodies and backgrounds.
+- [X] Simulate solar system using an N-body gravitational algorithm.
+- [X] Implement a raytracer for rendering bodies and backgrounds.
 - [ ] Learn and demonstrate features from every major C++ standard.
-- [ ] Use open-source tooling: GNU Emacs, Org-mode, GCC, GNU Make.
-
-* 🚀 Toolchain
-- Editor: Emacs + Org Mode
-- Compiler: GCC/g++
-- Build System: GNU Make (no CMake)
-- Version Control: Git (optional but recommended)
 
 * 📚 C++ Learning Checklist
 
 ** C++03 (Baseline)
-- [ ] Classes & Constructors
-- [ ] Operator Overloading (`+`, `*`, `[]`)
-- [ ] Manual memory management (`new` / `delete`)
-- [ ] STL containers: `std::vector`, `std::map`
+- [X] Classes & Constructors
+- [X] Operator Overloading (`+`, `*`, `[]`)
+- [X] Manual memory management (`new` / `delete`)
+- [X] STL containers: `std::vector`, `std::map`
 - [ ] Function overloading
-- [ ] Templates (vector math, utility classes)
-- [ ] Pointers, references, and const correctness
+- [X] Templates (vector math, utility classes)
+- [X] Pointers, references, and const correctness
 - [ ] Namespaces
-- [ ] RAII pattern with destructors
-- [ ] `std::string`, `std::stringstream`
+- [X] RAII pattern with destructors
+- [X] `std::string`, `std::stringstream`
 
 ** C++11 (Modern C++ begins)
-- [ ] `auto` type deduction
-- [ ] Range-based for loops
+- [X] `auto` type deduction
+- [X] Range-based for loops
 - [ ] Lambda expressions
-- [ ] `nullptr`
+- [X] `nullptr`
 - [ ] `enum class`
-- [ ] Smart pointers: `std::unique_ptr`, `std::shared_ptr`
+- [X] Smart pointers: `std::unique_ptr`, `std::shared_ptr`
 - [ ] `override`, `final` specifiers
 - [ ] `move` semantics and rvalue references
-- [ ] `std::array`, `std::tuple`
-- [ ] Thread support: `std::thread`
+- [X] `std::array`, `std::tuple`
+- [X] Thread support: `std::thread`
 
 ** C++14 (Polish & convenience)
 - [ ] Generic lambdas (`auto` in lambda parameters)
 - [ ] `decltype(auto)` and improved return type inference
 - [ ] `std::make_unique`
 - [ ] Binary literals and digit separators (`0b1010`, `1'000'000`)
-- [ ] Relaxed constexpr functions
+- [X] Relaxed constexpr functions
 - [ ] Using `auto` in lambda captures
 
 ** C++17 (Simpler and more expressive)
@@ -70,7 +63,7 @@ This project combines a raytracer and an N-body solar system simulation to learn
 - [ ] Expanded constexpr support (e.g., STL algorithms)
 
 ** C++23 (Final polish)
-- [ ] `std::expected` (like Rust's Result<T, E>)
+- [X] `std::expected` (like Rust's Result<T, E>)
 - [ ] `std::mdspan` for multidimensional array views
 - [ ] `explicit` lambdas
 - [ ] More constexpr in the standard library
@@ -102,22 +95,3 @@ This project combines a raytracer and an N-body solar system simulation to learn
 - [ ] Use `std::expected` for config file errors or simulation errors (C++23)
 - [ ] Add diagnostics/metrics via coroutines or logging views
 - [ ] Final cleanup using `consteval`, `mdspan`, or advanced features
-
-* 🧪 Testing Ideas
-- [ ] Unit tests for vector math and physics (can use C++11 `assert`)
-- [ ] Visual verification of orbits and raytraced scene
-- [ ] Compare numerical stability over long time steps
-
-* 📂 Directory Layout (suggested)
-#+BEGIN_SRC
-project-root/
-├── Makefile
-├── README.org (this file)
-└─── src/
-    ├── main.cpp
-    ├── vec3.cpp / .h
-    ├── body.cpp / .h
-    └─── raytracer/
-        └── ray.cpp / .h ...
-#+END_SRC
-