Update CHANGELOG.md

Author: zHaytam

CHANGELOG.md

@@ -4,6 +4,10 @@ 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).
 
+## [1.1.3] - 2020-11-03
+### Fixed
+- Diagram Container not ready when ports/nodes need it.
+
 ## [1.1.2] - 2020-11-02
 ### Added
 - Drag & Drop demo.