Add changes to log

Author: JSorngard

CHANGELOG.md

@@ -3,6 +3,11 @@
 This file contains the changes to the crate since version 0.1.1.
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+- Implement all the rational function evaluations using generic functions
+ instead of several different hand made ones.
+
 ## 1.0.13
 
 - Removed the note about the accuracy on the trait functions,
@@ -11,7 +16,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## 1.0.12
 
-- Noted the accuracy of the functions on the trait in the example. 
+- Noted the accuracy of the functions on the trait in the example.
 - Improvements to CI jobs.
 - Updated dev-dependencies.