docs(readme): added logo and more detail

readme.md

@@ -1,3 +1,4 @@
+![img](assets/logo/logo.png)
 # libconfig
 
 libconfig is the unified configuration module for SERiF and related projects
@@ -21,3 +22,62 @@ meson test -C build
 
 this will auto generate a pkg-config file for you so that linking other libraries to libconfig is easy.
 
+## Usage
+libconfig makes use of [glaze](https://github.com/stephenberry/glaze?tab=readme-ov-file) to provide compile time reflection
+and serialization/deserialization of configuration structs. This allows for config options to be defined in code
+and strongly typed.
+
+```c++
+#include "fourdst/config/config.h"
+#include <string>
+
+struct MyPhysicsOptions {
+    int gravity = 10;
+    float friction = 0.5f;
+    bool enable_wind = false;
+};
+
+struct MyControlOptions {
+    double time_step = 0.01;
+    double max_time = 100.0;
+};
+
+struct MySimulationConfig {
+    std::string name = "my_simulation";
+    MyPhysicsOptions physics;
+    MyControlOptions control;
+};
+
+int main() {
+    fourdst::config::Config<MySimulationConfig> cfg;
+    
+    // You can save the default config to a file
+    cfg.save("default_config.toml");
+    
+    // If you do not provide a name, glaze will use the struct's name
+    cfg.save(); // saves to MySimulationConfig.toml
+    
+    // You can save the json schema for the config
+    cfg.save_schema("."); // Here you must provide the directory to save to rather than a full file name
+    
+    // You can load a config from a file
+    cfg.load("my_config.toml");
+    
+    // You can accesss the config values
+    std::println("My Simulation Name: {}, My Simulation Gravity: {}", cfg->name, cfg->physics.gravity);
+}
+```
+
+## Example output TOML
+```toml
+[main]
+name = "my_simulation"
+[main.physics]
+gravity = 10
+friction = 0.5
+enable_wind = false
+[main.control]
+time_step = 0.01
+max_time = 100.0
+```
+