Clarify permissions in call-super-linter.yaml

Added comments to clarify permissions for the Super-Linter job.

Author: BretFisher

.github/workflows/call-super-linter.yaml

@@ -13,7 +13,9 @@ jobs:
   call-super-linter:
 
     name: Call Super-Linter
-    
+
+    # all other permissions not listed are set to `none`
+    # https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-syntax#permissions
     permissions:
       contents: read # clone the repo to lint
       statuses: write #read/write to repo custom statuses