Update changelog for beta2.

Author: Alex G Rice

CHANGELOG.md

@@ -1,13 +1,20 @@
 # Changelog
+
 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).
 
 ## [Unreleased]
+
+## beta2
+
 ### Added
+
 - Model for collections of teams called "organizations"
 - New roles for organizations, "organization owner" and "organization manager"
+- Shell scripts for managing organizations, owners, and managers
 
 ## beta1
+
 ### TODO complete this