Update changelog

Author: ekmartin

CHANGELOG.md

@@ -2,18 +2,22 @@
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [3.0.0] - 2015-03-24
+### Changed
 Move from using outgoing/incoming integrations to Slack's
-[bot users](https://api.slack.com/bot-users). See 
+[bot users](https://api.slack.com/bot-users). See
 [README.md](https://github.com/ekmartin/slack-irc/blob/master/README.md)
 for a new example configuration. This mainly means slack-irc won't need
 to listen on a port anymore, as it uses websockets to receive the messages
 from Slack's [RTM API](https://api.slack.com/rtm).
 
 To change from version 2 to 3, do the following:
-* Create a new Slack bot user (under integrations)
-* Add its token to your slack-irc config, and remove
+- Create a new Slack bot user (under integrations)
+- Add its token to your slack-irc config, and remove
 the `outgoingToken` and `incomingURL` config options.
 
+### Added
+- Message formatting, follows Slack's [rules](https://api.slack.com/docs/formatting).
+
 ## [2.0.1]- 2015-03-03
 ### Added
 - MIT License
@@ -35,7 +39,7 @@ the `outgoingToken` and `incomingURL` config options.
 - Support for running multiple bots (on different Slacks)
 
 ### Changed
-- New configuration format, example 
+- New configuration format, example
 [here](https://github.com/ekmartin/slack-irc/blob/44f6079b5da597cd091e8a3582e34617824e619e/README.md#configuration).
 
 ## [0.2.0] - 2015-02-06
@@ -44,4 +48,3 @@ the `outgoingToken` and `incomingURL` config options.
 
 ### Changed
 - Use winston for logging.
-