Update changelog for upcoming v5.0.0 release

CHANGELOG.md

@@ -5,42 +5,49 @@ 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 (#31)
+- Change node manipulations to return `Unit` (#32)
 
 New features:
+- Add support for ShadowRoot API (#34)
 
 Bugfixes:
 
 Other improvements:
+- Migrated CI to GitHub Actions and updated installation instructions to use Spago (#28, #30)
+- Added a CHANGELOG.md file and updated pull request template (#35, #36, #37)
+- Updated issue templates
+- Updated link to spec (#27)
+- Remove `return {}` from FFI functions for a small performance boost (#26)
 
 ## [v4.1.0](https://github.com/purescript-web/purescript-web-dom/releases/tag/v4.1.0) - 2020-06-07
 
-Added `Show` instance for `NodeType` (@srghma)
+- Added `Show` instance for `NodeType` (@srghma)
 
 ## [v4.0.2](https://github.com/purescript-web/purescript-web-dom/releases/tag/v4.0.2) - 2020-05-18
 
-Fixed FFI implementation for `hasAttribute` (#22, @srghma)
+- Fixed FFI implementation for `hasAttribute` (#22, @srghma)
 
 ## [v4.0.1](https://github.com/purescript-web/purescript-web-dom/releases/tag/v4.0.1) - 2020-03-15
 
-Add documentation explaining how to get hold of a `Document` in `Web.DOM.Document` (@hdgarrood, #19)
+- Add documentation explaining how to get hold of a `Document` in `Web.DOM.Document` (@hdgarrood, #19)
 
 ## [v4.0.0](https://github.com/purescript-web/purescript-web-dom/releases/tag/v4.0.0) - 2019-08-18
 
-Fixed type of `mutationObserver` (@alextes)
+- Fixed type of `mutationObserver` (@alextes)
 
 ## [v3.1.0](https://github.com/purescript-web/purescript-web-dom/releases/tag/v3.1.0) - 2019-08-18
 
-Added `classList` for `Element` (@alextes)
+- Added `classList` for `Element` (@alextes)
 
 ## [v3.0.0](https://github.com/purescript-web/purescript-web-dom/releases/tag/v3.0.0) - 2019-06-02
 
-`nodeValue` now returns `Effect (Maybe String)` as it is nullable (@bbarker)
+- `nodeValue` now returns `Effect (Maybe String)` as it is nullable (@bbarker)
 
 ## [v2.0.0](https://github.com/purescript-web/purescript-web-dom/releases/tag/v2.0.0) - 2019-02-23
 
-Bumped `-web-events` dependency, `Event.defaultPrevented` is now effectful.
+- Bumped `-web-events` dependency, `Event.defaultPrevented` is now effectful.
 
 ## [v1.0.0](https://github.com/purescript-web/purescript-web-dom/releases/tag/v1.0.0) - 2018-05-25
 
-Initial release
-
+- Initial release