Update changelog for changes since v3.0.0 (#14)

Author: thomashoneyman

CHANGELOG.md

@@ -5,21 +5,24 @@ Notable changes to this project are documented in this file. The format is based
 ## [Unreleased]
 
 Breaking changes:
+- Added support for PureScript 0.14 and dropped support for all previous versions (#12)
 
 New features:
 
 Bugfixes:
 
 Other improvements:
+- Migrated CI to GitHub Actions and updated installation instructions to use Spago (#10)
+- Added a CHANGELOG.md file and pull request template (#13)
 
 ## [v3.0.0](https://github.com/purescript-web/purescript-web-storage/releases/tag/v3.0.0) - 2019-02-23
 
-Bumped `-web-events` dependency, `Event.defaultPrevented` is now effectful.
+- Bumped `-web-events` dependency, `Event.defaultPrevented` is now effectful.
 
 ## [v2.0.0](https://github.com/purescript-web/purescript-web-storage/releases/tag/v2.0.0) - 2018-05-25
 
-Updated for PureScript 0.12 and the revised `purescript-web` project
+- Updated for PureScript 0.12 and the revised `purescript-web` project
 
 ## [v1.0.0](https://github.com/purescript-web/purescript-web-storage/releases/tag/v1.0.0) - 2016-07-04
 
-Initial release.
+- Initial release.