Update changelog for v5.0.1 release

Author: thomashoneyman

CHANGELOG.md

@@ -11,7 +11,12 @@ New features:
 Bugfixes:
 
 Other improvements:
-- Fix warnings revealed by v0.14.1 PS release (#133 by @JordanMartinez)
+
+## [v5.0.1](https://github.com/purescript-contrib/purescript-css/releases/tag/v5.0.1) - 2021-04-19
+
+Other improvements:
+- Fix warnings revealed by v0.14.1 PureScript release (#133 by @JordanMartinez)
+- Install transitive dependencies which are directly imported (#133 by @thomashoneyman)
 
 ## [v5.0.0](https://github.com/purescript-contrib/purescript-css/releases/tag/v5.0.0) - 2021-02-26