Updated CHANGELOG.

CHANGELOG.md

@@ -4,6 +4,19 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [0.2.0] - 2024-09-04
+
+### Added
+- External Tools section in the files (pages/external) and the nav bar - Issue https://github.com/Borealis-BioModeling/aurora-pkpd/issues/19 
+- Added a drugsynergy page under pages/external and the External Tools section of the navbar. Page links out to the MuSyC web app - Issue https://github.com/Borealis-BioModeling/aurora-pkpd/issues/6
+
+### Changed
+- Moved the HT Cell Proliferation page under the External Tools section and updated the page to linkout to the Thunor web App - Issue https://github.com/Borealis-BioModeling/aurora-pkpd/issues/4
+- Updated the compartmental/build page to put the descriptions/info for each step under expanders.
+- Updated all the compartmental pages as well as the NCA page and Exposure-Response pages, putting the page descriptions under expanders with text printed using `st.info` to help further declutter the pages and hide extraneous info.
+- Updated the home page to put each of the modeling/analysis options under expanders in an effort to help declutter the app pages and hide extraneous info.
+
+
 ## [0.1.2] - 2024-08-02
 
 ### Fixed