Updated changelog

Author: PauBadiaM

CHANGELOG.md

@@ -8,6 +8,16 @@ and this project adheres to [Semantic Versioning][].
 [keep a changelog]: https://keepachangelog.com/en/1.0.0/
 [semantic versioning]: https://semver.org/spec/v2.0.0.html
 
+## 2.1.1
+
+### Added
+- mypy checks in CI
+- notebook checks in CI
+
+### Bugfixes
+- Fixed error in `decoupler.pp.pseudobulk` when `adata.obs_names` were not unique, now throws verbose error
+- Fixed corner case in `decoupler.mt.gsea` when p-values were infitite and could not be corrected
+
 ## 2.1.0
 
 ### Changes