Update README.md (#1193)

Author: benwells

README.md

@@ -204,6 +204,15 @@ If the runner is not able to access github.com, any Nodejs versions requested du
  - [Publishing to npmjs and GPR with yarn](docs/advanced-usage.md#publish-to-npmjs-and-gpr-with-yarn)
  - [Using private packages](docs/advanced-usage.md#use-private-packages)
 
+## Recommended permissions
+
+When using the `setup-node` action in your GitHub Actions workflow, it is recommended to set the following permissions to ensure proper functionality:
+
+```yaml
+permissions:
+  contents: read # access to check out code and install dependencies
+```
+
 ## License
 
 The scripts and documentation in this project are released under the [MIT License](LICENSE)