Checking this option will disable regular polling (cron) for changes in GitHub
and will try to create a GitHub hook. Creating a GitHub hook requires that the user
which is specified in the GitHub Pull Request Builder configuration has
admin rights to the specified repository.
If you want to create a hook manually set it for event types:
issue_comment
, pull_request
and url http://yourserver.com/jenkins/ghprbhook/
.
Your Jenkins server must be accessible from internet.