Add 0.6.1 release notes

Author: shyiko

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased](https://github.com/altinity/ice/compare/v0.5.1...master)
 
+## [0.6.1](https://github.com/altinity/ice/compare/v0.6.0...v0.6.1)
+
+### Fixed
+- ice: sort order check.
+
 ## [0.6.0](https://github.com/altinity/ice/compare/v0.5.1...v0.6.0)
 
 ### Added