Fix/chelpg tutorial default

[kayleigh222]

No description provided.

[seankhl]

• Make sure not to commit output dirs, workspace dirs, or history.json files for local example runs
• I think we wanna be a bit clearer in general here about some of these things. EXESS does have the walltime reporting, and the docs should talk about fetch_run_info and how it reports walltime and SUs for supercomputers only. If we talk about estimating runtime from the Rush run statuses, we should explain what those statuses are and that the actual program's runtime might be shorter, since the Rush and tengu infrastructure does take some additional time on top of that.