Prepare release 0.0.4 (#30)

Author: Steffen Siering

CHANGELOG.md

@@ -5,19 +5,25 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 ## [Unreleased]
 
 ### Added
-- Added `Observer` to txfile for collecting per transaction metrics. PR #23
-- Make file syncing configurable. PR #29
-- Added `Observer` to pq package for collecting operational metrics. PR #26
 
 ### Changed
-- Queue reader requires explicit transaction start/stop calls. PR #27 
 
 ### Deprecated
 
 ### Removed
 
 ### Fixed
 
+## [0.0.4]
+
+### Added
+- Added `Observer` to txfile for collecting per transaction metrics. PR #23
+- Make file syncing configurable. PR #29
+- Added `Observer` to pq package for collecting operational metrics. PR #26
+
+### Changed
+- Queue reader requires explicit transaction start/stop calls. PR #27 
+
 ## [0.0.3]
 
 ### Fixed
@@ -46,6 +52,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 - Windows Fix: Max mmaped area must not exceed actual file size on windows. PR #11
 
 
-[Unreleased]: https://github.com/elastic/go-txfile/compare/v0.0.3...HEAD
+[Unreleased]: https://github.com/elastic/go-txfile/compare/v0.0.4...HEAD
+[0.0.4]: https://github.com/elastic/go-txfile/compare/v0.0.3...v0.0.4
 [0.0.3]: https://github.com/elastic/go-txfile/compare/v0.0.2...v0.0.3
 [0.0.2]: https://github.com/elastic/go-txfile/compare/v0.0.1...v0.0.2