Add changelog entries since v5.4.1 (#195)

* Add changelog entries since v5.4.1

* Apply review feedback

Co-authored-by: Harry Garrood <[email protected]>

Co-authored-by: Harry Garrood <[email protected]>

Author: milesfrain

CHANGELOG.md

@@ -5,13 +5,22 @@ Notable changes to this project are documented in this file. The format is based
 ## [Unreleased]
 
 Breaking changes:
+- Rename `scanrLazy` to `scanlLazy` and fix parameter ordering (#161)
+- Rename `group'` to `groupAll` (#182)
+- Change `Alt ZipList` to satisfy distributivity (#150)
 
 New features:
+- Add `groupAllBy` (#182, #191) 
 - Added `Eq1` and `Ord1` instances to `NonEmptyList` and `LazyNonEmptyList` (#188)
 
 Bugfixes:
 
 Other improvements:
+- Fix Lazy List docs where original list is returned instead of Nothing (#169)
+- Migrate to GitHub Actions (#177)
+- Change `foldM` type signature to more closely match `foldl` (#165)
+- Improve `foldr` performance on large lists (#180)
+- Generate changelog and add PR template (#187) 
 
 ## [v5.4.1](https://github.com/purescript/purescript-lists/releases/tag/v5.4.1) - 2019-05-06
 
@@ -308,4 +317,3 @@ Fixes for compiler version 0.6.1
 ## [v0.0.1](https://github.com/purescript/purescript-lists/releases/tag/v0.0.1) - 2014-07-07
 
 
-