Add Unreleased section to CHANGELOG.md

Author: robinst

CHANGELOG.md

@@ -5,6 +5,11 @@ 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).
 
+## Unreleased
+### Changed
+- Don't autolink if authority is only "end" characters, e.g. like `http://.` or
+  `http://"` (#15)
+
 ## [0.6.0] - 2016-11-07
 ### Added
 - New feature to extract links like `www.example.com` as well (no need for