Document that an application is not required

[SpecialThing44]

scala-steward-action/README.md

Line 18 in cc64e5c

To use the Action in your repo, you need to create a GitHub App. Then you need to create a new GitHub Actions workflow file to run this Action. Here is a step-by-step tutorial on how to do it:

This is inaccurate. I have successfully ran this action without one, which is demonstrated in https://github.com/SpecialThing44/scala-steward-action-test.

If you remove the below lines from the workflow file:

with:
  github-app-id: ${{ secrets.APP_ID }}
  github-app-installation-id: ${{ secrets.APP_INSTALLATION_ID }}
  github-app-key: ${{ secrets.APP_PRIVATE_KEY }}

Add write permissions as such at the top level:

permissions:
  contents: write
  pull-requests: write

and ensure that GitHub Actions has permissions to create and approve pull requests:
At /<repo_name>/settings/actions for users
At /<organization_name>/settings/actions for organizations.

Then you can use this action without having to create an app or any related secrets.

In general this is nice because it saves a lot of time, and avoids having to maintain secrets and apps with permissions.

As an added bonus, it works in forks.