Update CHANGELOG

CHANGELOG.md

@@ -4,10 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [0.0.13] - 2019-xx-xx
+## [0.0.13] - 2020-xx-xx
 ### Changed
 - Swapped out MD5 crate to simpler version
 - Replaced Error Chain with plain old error enums.
+- Added a `rustls-tls` option to use `rustls-tls` in reqwest. 
 
 ## [0.0.12] - 2019-10-13
 ### Fixed