message: Prepare to release v2.3.0
diff: @@ -5,9 +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/)
  and this project adheres to [Semantic Versioning](http://semver.org/).
  -## Unreleased
  +<!-- ## Unreleased -->
  +
  +## [2.3.0] - 2017-11-20
  +- Adds the `paper-toolbar-v1-to-v2` rule, which helps upgrade uses of paper-toolbar from v1 to v2 (hybrid) by adding slots to children where appropriate.
  - Improve the wording on the content-to-slot-declaration's unsafe edit action.
  -- Adds the 'paper-toolbar-v1-to-v2' rule, which helps upgrade uses of paper-toolbar from v1 to v2 (hybrid) by adding slots to children where appropriate.
  ## [2.2.1] - 2017-11-16
  - The array of warnings returned by `Linter#lint()` and `Linter#lintPackage()` now also has a non-enumerable `analysis` property, which refers to the immutable `Analysis` used to generate the lint results.
  