Assumng you are following along with the tutorial and running locally, you now have a job board with one user ("testuser") and no jobs, unless you took the time to create additional test data manually.
When quickly hacking together a data-driven website, populating your app with dummy data is a chore you want to avoid wasting time on, so let's see how to do that.
Firstly, restart HAppS in a pristine state by either deleting or backing up your _local data directory as described earler.
Now, click this link.
If everything worked right, you should now have two users and a couple hundred jobs worth of test data displaying in your jobs site.