Instructions out of date for fetching your servicex.yaml file

[gordonwatts]

Found on readthedocs:

Click on the Sign-in button in the upper right hand corner. You will be asked to authenticate via GlobusAuth and complete a registration form. Once this form is submitted, it will be reviewed by SSL staff. You will receive an email upon approval.

At least for UChicago, this isn't correct any longer.