fix easiest Submit a Job workflow link
fix easiest Submit a Job workflow link

fixes two bugs:

- new file was being added to the top-level directory (fix was to prefix filename with `jobs/`)
- `hiredrate` attribute name should be `rate`
uchchishta/jobs,opensourcedesign/jobs,opensourcedesign/jobs,simonv3/osd-job-board,simonv3/osd-job-board,uchchishta/jobs