Create README.md

.github/workflows/utils/README.md

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+This folder contains useful scripts to debug and test Github Actions without having to push to the repository.
+
+You need to install [act](https://github.com/nektos/acthttps://github.com/nektos/act) and run the act.sh script:
+
+```bash
+./act.sh <workflow-file.yaml>
+```