Update CHANGELOG.md

Author: icanhazstring

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+## [0.8.2] - 2021-05-27
+### Added
+- Added PHP8 Support ([#48](https://github.com/icanhazstring/systemctl-php/pull/48)) (thanks to [@marcingy](https://github.com/marcingy))
+
 ## [0.8.1] - 2020-11-09
 ### Added
 - Added `Target` unit ([#38](https://github.com/icanhazstring/systemctl-php/pull/38)) (thanks to [@peter279k](https://github.com/peter279k))