update changelog for pending release

CHANGELOG.md

@@ -4,6 +4,13 @@ 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).
 
+## [0.1.3] - 2022-02-01
+### Added
+- Partial `edge_port_group` update functionality. The description can now be updated.
+### Changed
+- Fixed a critical bug that caused all updates to panic.
+- Updated `edge-sdk-go` dependency which fixed a bug which prevented the optional field `edge_firewall_ruleset.description` from not being set.
+
 ## [0.1.2] - 2022-01-15
 ### Changed
 - Updated `edge-sdk-go` dependency which fixed a critical bug in `edge_firewall_ruleset` creation.