The comment in the readme suggests that `delete` defaults to false, but the version 2.0.0 in the `uses:` string still defaults to true.
So copying this example and removing the `delete` option WILL result in potential deletion of labels.
* Update example YAML in README
as seen in #7
* Update README.md
Pin version of issue-label-manager-action
Co-Authored-By: Benjamin Lannon <benjamin@lannonbr.com>