Update changelog.

Author: pmatseykanets

Diff for: CHANGELOG.md

@@ -3,13 +3,15 @@
 All notable changes to `laravel-notification-channels/hipchat` will be documented in this file
 
 ## [Unreleased]
-## Added
+
+## [0.1.0] - 2016-08-24
+### Added
 - Added HipChat card support to `HipChatMessage`. See https://developer.atlassian.com/hipchat/guide/sending-messages#SendingMessages-UsingCards.
 - Added tests for `HipChatChannel`.
 - Added `attachTo` method to `HipChatMessage`
-- Added `MessageColors` inteface that lists all supported by HipChat colors.
+- Added `MessageColors` inteface that lists all supported colors.
 
-## Changed
+### Changed
 - Switched to the stable 5.3 version of Laravel.
 - Allowed usage of the laravel-notification-channels/backport package, to use this notification channel with Laravel 5.1 and 5.2.
 - Updated tests.