Update CHANGELOG.md

Author: scott-xu

CHANGELOG.md

@@ -4,12 +4,14 @@ All notable changes to this project will be 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).
 
-## [3.3.2] - 2019-12-31
+## [3.3.2] - 2020-02-08
 
 ### Changed
  - Rename Ninject.Web.Common.OwinHost to Ninject.Web.Common.Owin
  - Rename Ninject.Web.Common.cs to NinjectWebCommon.cs in  Ninject.Web.Common.WebHost package
- - Store OWIN request scope in CallContext 
+ - Store OWIN request scope in CallContext
+ - Use Owin namespace when extend IAppBuilder
+ - Rename UseNinjectMiddleware to UseNinject 
 
 ## [3.3.1] - 2018-5-22