Add custom link to add an app, pre-populated with misc settings

[consideRatio]

When the instructions say the admin user installing github-app-user-auth by creating an GitHub app, a link can be provided pre-populated with settings. I've seen this done in instructions for another project that requires the creation of a GitHub app: https://github.com/actions-runner-controller/actions-runner-controller#deploying-using-github-app-authentication

Here are two example links:

• https://github.com/settings/apps/new?url=http://github.com/actions-runner-controller/actions-runner-controller&webhook_active=false&public=false&administration=write&actions=read
• https://github.com/organizations/:org/settings/apps/new?url=http://github.com/actions-runner-controller/actions-runner-controller&webhook_active=false&public=false&administration=write&organization_self_hosted_runners=write&actions=read&checks=read
  • This link includes :org which should be replaced by an organization to create it for, while the other link defaults to creating it for yourself.