Set permissions in the README example

[mohamedhamdyamer]

adding:
permissions: read-all

This is to avoid failure of super-linter that is triggered by checkov.

checkov flags that the top-level permissions are set to "write-all" (default value). Accordingly, the action will fail with an error.

Proposed changes

Small addition to the yaml example as described above

Readiness checklist

In order to have this pull request merged, complete the following tasks.

Pull request author tasks

• I included all the needed documentation for this change.
• I provided the necessary tests.
• I squashed all the commits into a single commit.
• I followed the Conventional Commit v1.0.0 spec.
• I wrote the necessary upgrade instructions in the upgrade guide.
• If this pull request is about and existing issue,
  I added the Fix #ISSUE_NUMBER label to the description of the pull request.

Super-linter maintainer tasks

• Label as breaking if this change breaks compatibility with the previous released version.
• Label as either: automation, bug, documentation, enhancement, infrastructure.

[ferrarimarco]

Thanks for this PR! A small thing to check.

[mohamedhamdyamer]

Hi Team,

Just updated the commit message to be shorter and compliant with Conventional Commits.