prepare CHANGELOG.md for release of version 0.8.0

CHANGELOG.md

@@ -2,6 +2,13 @@
 
 All notable changes to Phive are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
 
+## [0.8.0] - 2017-08-26
+
+### Added
+
+* [#94](/~https://github.com/phar-io/phive/issues/94): Check if a PHAR's requirements are met during installation
+* [#86](/~https://github.com/phar-io/phive/issues/86): Add global option `--no-progress`
+
 ## [0.7.2] - 2017-06-06
 
 ### Fixed
@@ -173,12 +180,9 @@ any changed PHARs
 
 ## [Unreleased]
 
-### Added
-
-* [#94](/~https://github.com/phar-io/phive/issues/94): Check if a PHAR's requirements are met during installation
-* [#86](/~https://github.com/phar-io/phive/issues/86): Add global option `--no-progress`
 
-[Unreleased]: /~https://github.com/phar-io/phive/compare/0.7.2...HEAD
+[Unreleased]: /~https://github.com/phar-io/phive/compare/0.8.0...HEAD
+[0.8.0]: /~https://github.com/phar-io/phive/compare/0.7.2...0.8.0
 [0.7.2]: /~https://github.com/phar-io/phive/compare/0.7.1...0.7.2
 [0.7.1]: /~https://github.com/phar-io/phive/compare/0.7.0...0.7.1
 [0.7.0]: /~https://github.com/phar-io/phive/compare/0.6.3...0.7.0