Update changelog (v3.1 and v3.2)

CHANGELOG.md

@@ -4,14 +4,37 @@ 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).
 
-## [3.0.3] - 2019-10-21
+## [3.2.0] - 2020-04
 ### Added
-- Display anis-client and anis-server versions.
-- Add detail page for an object.
+- User can change the number of object displayable (10, 20, 50, 100) in result datatable
+
+### Security
+- Migrate to Angular v8 to v9
+
+## [3.1.0] - 2020-03
+### Added
+- Unit tests added
+- Scroll to top on new page added
+- Operators are visible on search form
+
+### Changed
+- Detail-link and detail-btn renderers refactored
+- Update datasets display to accordion
+- Password fields can be visible
+- Search form design updated to integrate operators
+
+### Fixed
+- Migrate from anis-server v3.0.3 to 3.1
+- Migrate to anis-auth v3.1
+
+## [3.0.3] - 2019-10
+### Added
+- Display anis-client and anis-server versions
+- Add detail page for an object
 
 ### Changed
-- Fix ordering by diplay for options in Criteria step.
-- Design ouputs selection.
+- Fix ordering by diplay for options in Criteria step
+- Design ouputs selection
 
 ### Fixed
-- Fix bug renderer external links.
+- Fix bug renderer external links
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