Add permission section (#84)

README.md

@@ -1,5 +1,15 @@
 # Common tools for generation of packages in the actions/*-versions repositories
 This repository contains PowerShell modules that are used to generate packages for Actions. The packages are consumed by the images generated through [actions/runner-images](https://github.com/actions/runner-images) and some of the setup-* Actions
 
+## Recommended permissions
+
+When using the `versions-package-tools` in your GitHub Actions workflow, it is recommended to set the following permissions to ensure proper functionality:
+
+```yaml
+permissions:
+  contents: read # access to read repository's content
+  actions: read # access to reading actions 
+```
+
 ## Contribution
 Contributions are welcome! See [Contributor's Guide](./CONTRIBUTING.md) for more details about contribution process and code structure