Prepare release 0.0.3 (#21)

Author: Steffen Siering

CHANGELOG.md

@@ -12,6 +12,10 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Removed
 
+### Fixed
+
+## [0.0.3]
+
 ### Fixed
 - Fix build for *BSD. PR #20
 
@@ -38,5 +42,6 @@ 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/v0.0.2...HEAD
+[Unreleased]: https://github.com/elastic/go-txfile/compare/v0.0.3...HEAD
+[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