udpate release date

Author: 902seanryan

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [1.0.0] - UNRELEASED
+## [1.0.0] - 2020-03-31
 ### Added
 - Unit tests added for caption studio components and classes
 ### Changed