Add example permissions to README

Archetypically · Archetypically · commit 8398968294f2 · 2022-09-12T12:09:45.000-06:00
diff --git a/README.md b/README.md
@@ -19,6 +19,9 @@ on:
     paths:
       - 'CODEOWNERS'
 
+permissions:
+  contents: write
+
 jobs:
   add-write-permissions-for-codeowners:
     runs-on: ubuntu-latest
