update changelog

Author: alphaville

CHANGELOG.md

@@ -302,6 +302,7 @@ This is a breaking API change.
      --------------------- -->
 
 <!-- Releases -->
+[v0.9.2]: https://github.com/alphaville/optimization-engine/compare/v0.9.1...v0.9.2
 [v0.9.1]: https://github.com/alphaville/optimization-engine/compare/v0.9.0...v0.9.1
 [v0.9.0]: https://github.com/alphaville/optimization-engine/compare/v0.8.1...v0.9.0
 [v0.8.1]: https://github.com/alphaville/optimization-engine/compare/v0.8.0...v0.8.1