Issue

There is an error in the python-rq documentation on the cron jobs page (https://python-rq.org/docs/cron/).

In the example given for the configuration file, the argument cron_string is used in the register function. However, the correct argument name should be cron.

Steps to reproduce

• Go to https://python-rq.org/docs/cron/
• Check the example for the configuration file.
• Notice that cron_string is used instead of cron as the argument for the cron expression.

Expected behavior

The documentation should use the correct argument name cron in the example, so users can easily copy and use the configuration.

Suggested fix

Update the example in the documentation to use cron instead of cron_string in the register function.

I am opening this issue so I can submit a PR to fix the documentation.