guide: `--json/csv` examples in Listing/Comparing Experiments

[iesahin]

I'll add an example with jq to the UG after testing it.

Originally posted by @iesahin in #2740 (comment)

[skshetry]

If treeverse/dvc#6647 gets merged, we'll be prettifying json by default unless you meant to use jq for filtering.

[jorgeorpinel]

What about --csv? Per #2740 (comment)

[iesahin]

I believe JSON is supposed to be used by other commands. Some kind of filtering may be possible, e.g., experiments with a metric higher than a certain threshold.

[jorgeorpinel]

I believe JSON is supposed to be used by other commands

Yes, that's fine but CSV will also have some use cases (otherwise why does it exist) so let's include it too?

From #2740 (comment) :

I would prefer example outputs for both --json and --csv over a usage example, since what would be less obvious to users is the format of those JSON and CSV outputs

[iesahin]

There are now examples for these options in #2737

[jorgeorpinel]

Great! I think you mean #2862 though? Please link that PR to close this issue if so @iesahin. Thanks