Fix 0.0.3 diff link

Author: markdalgleish

CHANGELOG.md

@@ -24,4 +24,4 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 [unreleased]: https://github.com/markdalgleish/postcss-local-scope/compare/v0.0.3...HEAD
 [0.0.2]:      https://github.com/markdalgleish/postcss-local-scope/compare/v0.0.1...v0.0.2
-[0.0.2]:      https://github.com/markdalgleish/postcss-local-scope/compare/v0.0.2...v0.0.3
+[0.0.3]:      https://github.com/markdalgleish/postcss-local-scope/compare/v0.0.2...v0.0.3