Merge pull request #65 from tshepang/patch-1

readme: fix/improve note about permissions

Author: JamesMGreene

README.md

@@ -28,8 +28,12 @@ The [`tar` file][tar] must:
 
 # File Permissions
 
-When using this action ensure your files have appropriate file permission, we expect at a minimum for the files to have permission for the current user (e.g 0744).
-Failure to do so will result in a `deployment_perms_error` when attempting to deploy your artifacts.
+When using this action, ensure that your files have appropriate file permissions.
+At a minimum, GitHub Pages expects:
+- files to have read permission for the current user and the "Others" user role (e.g. `0744`, `0644`, `0444`)
+- directories to have read and execute permissions for the current user and the "Others" user role (e.g. `0755`, `0555`)
+
+Failure to supply adequate permissions will result in a `deployment_perms_error` when attempting to deploy your artifacts to GitHub Pages.
 
 ```yaml
 ...