docs: refine example action

Author: marcalexiei

README.md

@@ -9,14 +9,20 @@ name: Update README cards
 
 on:
   schedule:
-    - cron: "0 0 * * *"
+    - cron: "0 0 * * *" # Runs once daily at midnight
   workflow_dispatch:
 
+permissions: {}
+
 jobs:
   build:
     runs-on: ubuntu-latest
+    
+    permissions:
+      contents: write
+
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Generate stats card
         uses: readme-tools/github-readme-stats-action@v1