Prepare for 3.0.0 release

Author: stronk7

docs/CHANGELOG.md

@@ -9,6 +9,9 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 The format of this change log follows the advice given at [Keep a CHANGELOG](http://keepachangelog.com).
 
 ## [Unreleased]
+No unreleased changes.
+
+## [3.0.0] - 2020-07-23
 ### Changed
 - ACTION REQUIRED: project organization renamed to moodlehq. You must update your `.travis.yml` to use `moodlehq/moodle-plugin-ci`
 - ACTION REQUIRED: If you initiated Selenium server in docker container as
@@ -267,7 +270,8 @@ The format of this change log follows the advice given at [Keep a CHANGELOG](htt
 - `moodle-plugin-ci shifter` command.  Run YUI Shifter on plugin YUI modules.
 - `moodle-plugin-ci csslint` command.  Lints the CSS files in the plugin.
 
-[Unreleased]: https://github.com/moodlehq/moodle-plugin-ci/compare/2.5.0...master
+[Unreleased]: https://github.com/moodlehq/moodle-plugin-ci/compare/3.0.0...master
+[3.0.0]: https://github.com/moodlehq/moodle-plugin-ci/compare/2.5.0...3.0.0
 [2.5.0]: https://github.com/moodlehq/moodle-plugin-ci/compare/2.4.0...2.5.0
 [2.4.0]: https://github.com/moodlehq/moodle-plugin-ci/compare/2.3.0...2.4.0
 [2.3.0]: https://github.com/moodlehq/moodle-plugin-ci/compare/2.2.0...2.3.0