Fix ./breeze build-docs command options in docs/README.rst

[ishiis]

What do you see as an issue?

I got an error when executing ./breeze build-docs -- --help command in docs/README.rst.

% ./breeze build-docs -- --help
Usage: breeze build-docs [OPTIONS]

Try running the '--help' flag for more information.

╭─ Error ─────────────────────────────────────────────────╮
│ Got unexpected extra argument (--help)                  │
╰─────────────────────────────────────────────────────────╯

To find out more, visit
https://github.com/apache/airflow/blob/main/BREEZE.rst

Solving the problem

"--" in option should be removed.

Anything else

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[potiuk]

Just remove -- . I will remove those "old" entries in docs.

[potiuk]

I have one more fix to do there - so I will do it together :)