Adding some documentation.

gemla/src/bracket/genetic_state.rs

@@ -1,7 +1,18 @@
+//! A trait used to interact with the internal state of nodes within the genetic bracket
+
+/// A trait used to interact with the internal state of nodes within the genetic bracket
 pub trait GeneticState {
+    
+    /// Runs a simulation on the state object in order to guage it's fitness.
+    /// - iterations: the number of iterations (learning cycles) that the current state should simulate
+    /// 
+    /// This will be called for every node in a bracket before evaluating it's fitness against other nodes.
     fn run_simulation(&mut self, iterations: u32);
 
+    /// Returns a fit score associated with the nodes performance.
+    /// This will be used by a bracket in order to determine the most successful child.
     fn get_fit_score(&self) -> f64;
 
+    /// Initializes a new instance of a genetic state.
     fn initialize() -> Self;
 }