Add changelog, unreleased section to be completed

CHANGELOG.md

@@ -0,0 +1,47 @@
+# 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]
+
+### Added
+
+- Changelog file (this file) and reference in the [readme](README.md).
+
+### Changed
+
+### Deprecated
+
+### Removed
+
+### Fixed
+
+### Security
+
+## [0.2.0] - 2023-04-14
+
+### Changed
+
+- General project structure, [cargo.toml](Cargo.toml) and [license](LICENSE).
+
+### Removed
+
+- Previous placeholder project (0.1.x)
+
+## 0.1.1 - 2023-02-21 [YANKED]
+
+### Added
+
+- Note on holding the crate name and link to original repository
+
+## 0.1.0 - 2016-04-07 [YANKED]
+
+### Added
+
+- Basic hello world project structure, testing crates.io
+
+[unreleased]: https://github.com/supleed2/omg-rs/compare/v0.2.0...HEAD
+[0.2.0]: https://github.com/supleed2/omg-rs/releases/tag/v0.2.0

README.md

@@ -1,3 +1,5 @@
 # omg-rs: CLI app for interacting with the omg.lol API
 
 Version change to 0.2 was made to signal the change in ownership of the "omg" crate, thanks to [@maxjacobson](https://github.com/maxjacobson) for being so chill
+
+Refer to the [changelog](CHANGELOG.md) for more information.