Prepare for v0.6.5 (#123)

Update changelog for v0.6.5 release

CHANGELOG.md

@@ -5,7 +5,6 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 ## [Unreleased]
 
 ### Added
-- Added a NOOP resolver that will return the key wrapped in the field reference syntax. #xxx
 
 ### Changed
 
@@ -15,6 +14,11 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 
+## [0.6.5]
+
+### Added
+- Added a NOOP Resolver that will return the key wrapped in the field reference syntax. #122
+
 ## [0.6.4]
 
 ### Fixed
@@ -221,7 +225,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 - Introduced CHANGELOG.md for documenting changes to ucfg.
 
 
-[Unreleased]: https://github.com/elastic/go-ucfg/compare/v0.6.4...HEAD
+[Unreleased]: https://github.com/elastic/go-ucfg/compare/v0.6.5...HEAD
+[0.6.4]: https://github.com/elastic/go-ucfg/compare/v0.6.4...v0.6.5
 [0.6.4]: https://github.com/elastic/go-ucfg/compare/v0.6.3...v0.6.4
 [0.6.3]: https://github.com/elastic/go-ucfg/compare/v0.6.2...v0.6.3
 [0.6.2]: https://github.com/elastic/go-ucfg/compare/v0.6.1...v0.6.2