Update NEWS.md

Author: santiagobadia

NEWS.md

@@ -4,20 +4,20 @@ 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]
+## [0.2.0] - 2020-04-26
 
 ### Added
 
-  - 
-
+  - Support to automatic differentiation
+  - Time integration of multivalue problems
+  - Implementation of a ForwardEuler solver
+  
 ### Changed
-
-  - 
+  
 ### Fixed
 
-  - 
+  - Bug in ThetaMethod
 
-## [0.1.0] - 2020-05-18
+## [0.1.0] - 2020-04-18
 
 It is the first fully functional version.