📝 Add requested permissions

README.md

@@ -8,6 +8,16 @@ The default configuration will:
 - Close the stale issues and pull requests after 7 days of inactivity
 - If an update/comment occur on stale issues or pull requests, the stale label will be removed and the timer will restart
 
+## Required Permissions
+
+For the execution of the action, it must be able to read all issues and pull requests. In addition, the action must have the permission to write to issues and/or pull requests. This can be achieved with the following [configuration in the action](https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#permissions) if the permissions are restricted:
+
+```yml
+permissions:
+  issues: write
+  pull-requests: write
+```
+
 ## All options
 
 ### List of input options