Clarify How the permissions are calculated for a workflow job

[jsoref]

Code of Conduct

• I have read and agree to the GitHub Docs project's Code of Conduct

What article on docs.github.com is affected?

https://docs.github.com/en/actions/security-guides/automatic-token-authentication#how-the-permissions-are-calculated-for-a-workflow-job

What part(s) of the article would you like to see updated?

Finally,
if the workflow was triggered by a pull request from a forked repository,
and the Send write tokens to workflows from pull requests setting is not selected,
the permissions are adjusted to change any write permissions to read only.

Should be changed to say clarify that if the workflow was triggered by a pull request and the job event is pull_request_target then write permissions will not be changed to read only.

I'm still recovering from a concussion, but here's my first attempt at fixing this text:

Finally,
if the workflow was triggered for the pull_request event (and not the pull_request_target event) by a pull request from a forked repository,
and the Send write tokens to workflows from pull requests setting is not selected,
the permissions are adjusted to change any write permissions to read only.

Additional information

No response

[nguyenalex836]

@jsoref Sorry to hear about the concussion 💛 I'll get this triaged for review ✨