Update CHANGELOG.md

Author: icanhazstring

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## [0.7.1] - 2020-05-27
+### Added
+- Added `Scope` unit ([#32](https://github.com/icanhazstring/systemctl-php/pull/32)) (thanks to [@peter279k](https://github.com/peter279k))
+
 ## [0.7.0] - 2020-02-16
 ### Changed
 - Moved classes to different namespace (`SystemCtl` to `icanhazstring\Systemctl`)
@@ -12,4 +16,4 @@
 - Added code quality tools
 
 ## Previous releases
-- No changelog available
+- No changelog available