updated the version comparison links

Author: hokiedsp

CHANGELOG.md

@@ -57,7 +57,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) a
 
 Initial release
 
-[unreleased]: https://github.com/python-ffmpegio/python-namedpipe/compare/v0.2.4...HEAD
+[unreleased]: https://github.com/python-ffmpegio/python-namedpipe/compare/v0.2.5...HEAD
+[0.2.5]: https://github.com/python-ffmpegio/python-namedpipe/compare/v0.2.4...v0.2.4
 [0.2.4]: https://github.com/python-ffmpegio/python-namedpipe/compare/v0.2.3...v0.2.4
 [0.2.3]: https://github.com/python-ffmpegio/python-namedpipe/compare/v0.2.2...v0.2.3
 [0.2.2]: https://github.com/python-ffmpegio/python-namedpipe/compare/v0.2.1...v0.2.2