1.5.0 readiness

Updates the CHANGELOG.md to set the release date.

Author: laminas-bot

CHANGELOG.md

@@ -2,28 +2,25 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
-## 1.5.0 - TBD
+## 1.5.0 - 2020-08-31
 
-### Added
 
-- Nothing.
 
-### Changed
+-----
 
-- Nothing.
+### Release Notes for [1.5.0](https://github.com/laminas/automatic-releases/milestone/13)
 
-### Deprecated
 
-- Nothing.
 
-### Removed
+### 1.5.0
 
-- Nothing.
-
-### Fixed
+- Total issues resolved: **1**
+- Total pull requests resolved: **1**
+- Total contributors: **1**
 
-- Nothing.
+#### Enhancement
 
+ - [62: Add milestone descriptions when creating new milestones](https://github.com/laminas/automatic-releases/pull/62) thanks to @geerteltink
 ## 1.4.0 - 2020-08-31