Closes #2 - adds a changelog

Author: Kyle Andrews

CHANGELOG.md

@@ -0,0 +1,44 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [1.0.0] - 2019-12-15
+
+### Added
+
+- TypeScript declaration file for `Notify.js`
+
+### Changed
+
+- Updated to ES2019
+
+### Removed
+
+- Support for IE 11
+
+## [0.2.0] - 2019-09-30
+
+### Added
+
+- Reworked library to use `window.requestAnimationFrame` instead of `setTimeout` in order to increase performance
+- Notifications are queued and will be displayed in the order they're submitted
+- Added positioning information/values
+- Updated HTML structure to allow for more robust layouts/designs
+- Removed the 10 second maximum notification duration
+
+### Removed
+
+- Entire existing codebase due to rewrite
+
+[Unreleased]: https://github.com/codewithkyle/notifyjs/compare/v1.0.0...HEAD
+[1.0.0]: https://github.com/codewithkyle/notifyjs/compare/v0.2.0...v1.0.0
+[0.2.0]: https://github.com/codewithkyle/notifyjs/compare/v0.1.0...v0.2.0
+[0.1.0]: https://github.com/codewithkyle/notifyjs/compare/v0.0.4...v0.1.0
+[0.0.4]: https://github.com/codewithkyle/notifyjs/compare/v0.0.2...v0.0.4
+[0.0.2]: https://github.com/codewithkyle/notifyjs/compare/v0.0.1...v0.0.2
+[0.0.1]: https://github.com/codewithkyle/notifyjs/releases/tag/v0.0.1