Add tests

.release-it.json

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+{
+  "src": {
+    "tagName": "v%s"
+  }
+}

CHANGELOG.md

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+# 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 mostly adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [1.0.2] - 2018-11-04
+
+### Added
+- Added proper tests with Jest
+
+## [1.0.1] - 2018-08-14
+
+### Changed
+- Renamed the `pin` option to `offset`, and removed the `pin-` prefix from the generated classes (now only `t-[key]`, `r-[key]`, etc.)
+- The `aspect-ratio` classes now only set `padding-bottom`
+
+### Fixed
+- Fixed escaping in selectors generated by the plugin
+
+## 1.0.0 - 2018-05-06
+
+Initial release
+
+[Unreleased]: https://github.com/benface/tailwindcss-layout/compare/v1.0.2...HEAD
+[1.0.2]: https://github.com/benface/tailwindcss-layout/compare/v1.0.1...v1.0.2
+[1.0.1]: https://github.com/benface/tailwindcss-layout/compare/v1.0.0...v1.0.1