clarify workflow labels

[jayoung]

I find something confusing when I get to this step:
https://hutchdatascience.org/FH_WDL101_Cromwell/using-shiny-to-manage-workflows.html#submit-a-workflow

In the 'submit workflow' section, the shiny app lets us put in a label and a secondary label.

question - what's the point of those labels? where do they appear for a job?

I tried adding a label (hello2a) and a secondary label (hello2b) to a test job (thehello_hostname test workflow), and I don't see those labels appear anywhere in the track jobs data of the shiny app, or anywhere in the job output in /fh/scratch. I also don't find anything if I use the labels to filter in any of the track jobs filtering sections.

[jayoung]

ah - OK, now I see it, when I click on a particular job in the overview section, to get the 'workflow specific job information'

maybe a few words about why those labels are useful could help.