Update CHANGELOG.md

Author: shalvah

CHANGELOG.md

@@ -13,6 +13,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Removed
 
+## 4.8.0 - Saturday, 2 May 2020 ([compare to previous](https://github.com/mpociot/laravel-apidoc-generator/compare/4.7.0...4.8.0))
+### Added
+- Support @hideFromAPIDocumentation on controllers. (https://github.com/mpociot/laravel-apidoc-generator/pull/745)
+- Allow strategies to return null. (https://github.com/mpociot/laravel-apidoc-generator/pull/739)
+
 ## 4.7.0 - Sunday, 12 April 2020 ([compare to previous](https://github.com/mpociot/laravel-apidoc-generator/compare/4.6.0...4.7.0))
 ### Added
 - Support for Laravel Vapor. (https://github.com/mpociot/laravel-apidoc-generator/pull/729)