Implement the "publish-action" action

README.md

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 # publish-action
+
+**Please note: this action is for internal usage only, we don't track issues or accept any contributions. We also do not recommend it for public or production usage.**
+
+This action adds reliability to the new action versions publishing and handles the following cases:
+- Update a major tag (v1, for example) to point to the latest release (v1.2.1, for example).
+- Create a major tag from the latest released tag if a major tag doesn't exist 
+
+## Status
+Alpha. Action is under development and internal testing.
+
+## Usage
+Action can be triggered on release creation or manually. The actual major tag update will require manual approval. 
+See [release-new-action-version.yml](./.github/workflows/release-new-action-version.yml) for usage example.
+
+See [action.yml](action.yml) for a complete description of input and output fields.
+Read more about action versioning notation in [action-versioning.md](https://github.com/actions/toolkit/blob/main/docs/action-versioning.md).
+
+To roll back a release in case of customer impact, start the workflow manually and specify the previous stable tag.
+
+## Conributions
+
+We don't accept contributions until the action is ready for production.
+
+## License
+The scripts and documentation in this project are released under the [MIT License](LICENSE).