extra "qsub" options - label verbiage improvement

[MontrealSergiy]

[MontrealSergiy]

There is a label Extra 'qsub' options on the Tool Version page. However not every scheduler has qsub command/option, for example, a more popular Slurm scheduler running on 'official' common clusters, offers srun command instead of qsub. It would be more appropriate to call this field label "Add job submisison options", or "Extra options for cluster command (srun, qsub)".