[skip ci] Updated changelog for v0.1.1 release

CHANGELOG.md

@@ -11,5 +11,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Initial creation
 - Created `db` and `xvault` package
 
-[Unreleased]: https://github.com/Comcast/caduceus/compare/v0.1.0...HEAD
+## [v0.1.1]
+- Modified `db` package database schema to have Tombstone and History documents
+- Added files for docker-compose
+- Added initial cucumber tests
+- Added initial unit tests for `db` package
+
+[Unreleased]: https://github.com/Comcast/caduceus/compare/v0.1.1...HEAD
 [v0.1.0]: https://github.com/Comcast/codex/compare/0.0.0...v0.1.0
+[v0.1.1]: https://github.com/Comcast/codex/compare/v0.1.0...v0.1.1