Prep changelog for 1.0.0 release (#42)

CHANGELOG.md

@@ -4,11 +4,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.0.0]
 ### Changed
 - Migrate to Go modules.
 
+### Fixed
+- Ignore trace related goroutines that cause false positives with -trace.
+
 ## 0.10.0
 - Initial release.
 
-[Unreleased]: https://github.com/uber-go/goleak/compare/v0.10.0...HEAD
+[1.0.0]: https://github.com/uber-go/goleak/compare/v0.10.0...v1.0.0