docs: add a changelog file

Author: kevee

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 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Fixed
+
+- The browser example was not working due to API changes.
+- The Readme file was using the wrong package name
+
+## [0.1.1] - 2022-07-16
+
+### Fix
+
+- A minor version bump for NPM
+
+## [0.1.0] - 2022-07-16
+
+### Added
+
+- Removing Babel
+- Using C8 and Mocha for native ES import testing
+- Remove Grunt in favor of some simpler scripts in package.json
+- Build a CJS module as part of the build process
+
+## [0.0.3] - 2020-12-07
+
+### Fixed
+
+- Updated URLs for NOAA's API for the testing service
+- Security update to developer dependencies
+
+## [0.0.2] - 2019-11-14
+
+### Added
+
+- Tidal extreme calculations are expensive, so you can now use the `timeFidelity` option to define how exact you want the high/low tide dates to be.