Patch changelog for release

Author: styxit

CHANGELOG.md

@@ -5,8 +5,8 @@ All notable changes to `exonet-api-python` will be documented in this file.
 Updates should follow the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
 
 ## Unreleased
-[Compare v0.0.1 - Unreleased](https://github.com/exonet/exonet-api-python/compare/v0.0.1...develop)
+[Compare 0.0.1 - Unreleased](https://github.com/exonet/exonet-api-python/compare/0.0.1...master)
 
-## [v0.0.1](https://github.com/exonet/exonet-api-python/releases/tag/v0.0.1) - 2018-??-??
+## [0.0.1](https://github.com/exonet/exonet-api-python/releases/tag/0.0.1) - 2018-03-23
 ### Added
 - Initial release.