SLURMCluster example in API docs is out of date

The example for SLURMCluster in the API docs uses the threads keyword which has been removed. Using it raises the exception,

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-10-c817ba318976> in <module>()
      3                        walltime='00:10:00',
      4                        local_directory='$SHARED_SCRATCH/wtb2',
----> 5                        memory='10GB',processes=6,threads=4)

~/.conda/envs/hic_simulation/lib/python3.6/site-packages/dask_jobqueue/slurm.py in __init__(self, queue, project, walltime, job_cpu, job_mem, job_extra, **kwargs)
     72             job_extra = dask.config.get('jobqueue.slurm.job-extra')
     73 
---> 74         super(SLURMCluster, self).__init__(**kwargs)
     75 
     76         # Always ask for only one task

~/.conda/envs/hic_simulation/lib/python3.6/site-packages/dask_jobqueue/core.py in __init__(self, name, cores, memory, processes, interface, death_timeout, local_directory, extra, env_extra, walltime, threads, **kwargs)
    109         # """
    110         if threads is not None:
--> 111             raise ValueError(threads_deprecation_message)
    112 
    113         if not self.scheduler_name:

ValueError: The threads keyword has been removed and the memory keyword has changed.

Please specify job size with the following keywords:

-  cores: total cores per job, across all processes
-  memory: total memory per job, across all processes
-  processes: number of processes to launch, splitting the quantities above

[lesteve]

That would be great! If you can have a quick look to double-check this problem does not appear in other parts of the doc (using git grep may be handy) even better!

[wtbarnes]

Ok I’ll submit a PR during the sprint tomorrow