Cleaning up some release-related metadata

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2016 Jeremy Saenz & Contributors
+Copyright (c) 2022 urfave/cli maintainers
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -68,3 +68,7 @@ export PATH=$PATH:$GOPATH/bin
 cli is tested against multiple versions of Go on Linux, and against the latest
 released version of Go on OS X and Windows. This project uses Github Actions for
 builds. To see our currently supported go versions and platforms, look at the [./.github/workflows/cli.yml](https://github.com/urfave/cli/blob/main/.github/workflows/cli.yml).
+
+## License
+
+See [`LICENSE`](./LICENSE)

docs/CHANGELOG.md

@@ -1,3 +1,9 @@
+> This document is no longer being actively maintained. Please see the
+> [releases page](https://github.com/urfave/cli/releases) for all release notes
+> and related hypermedia for releases > 1.22.5+, 2.3.0+ and more.
+
+---
+
 # Change Log
 
 **ATTN**: This project uses [semantic versioning](http://semver.org/).