🐛🔧👷 Explain contents privilege in CI/CD

This is needed for the GitHub Release creation to work.

.github/workflows/ci-cd.yml

@@ -102,7 +102,7 @@ jobs:
     if: github.event_name == 'push' && contains(github.ref, 'refs/tags/')
 
     permissions:
-      contents: write
+      contents: write  # IMPORTANT: mandatory for making GitHub Releases
       id-token: write  # IMPORTANT: mandatory for trusted publishing & sigstore
 
     environment: