updated readme

Author: pschraut

CHANGELOG.md

@@ -4,6 +4,6 @@ All notable changes to this package are documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [1.0.0] - 2021-??-??
+## [1.0.0-pre.1] - 2021-08-27
 ### Added
  - Public release

README.md

@@ -1,6 +1,8 @@
 # Addressables BuildLayout Explorer for Unity
 
-TBD
+BuildLayout Explorer for Unity allows you to inspect a buildlayout.txt file that was generated by Addressables.
+
+[![](http://img.youtube.com/vi/cOCIej3FXjs/0.jpg)](https://www.youtube.com/watch?v=cOCIej3FXjs "")
 
 # Installation
 
@@ -12,7 +14,7 @@ In Unity's Package Manager, choose "Add package from git URL" and insert one of
 
 | Version | Link |
 |----------|---------------|
-| 1.0.0 | https://github.com/pschraut/UnityAddressablesBuildLayoutExplorer.git#1.0.0 |
+| 1.0.0-pre.1 | https://github.com/pschraut/UnityAddressablesBuildLayoutExplorer.git#1.0.0-pre.1 |
 
 # Credits