Update reference docs and book for kpt live

[mortent]

Update the kpt book and reference docs:

• Add the new status-events flag to the reference docs
• Update the output examples to reflect the updated behavior when no reconcile or prune timeout is provided.
• Update the output examples to reflect the less verbose reconcile output when the status-events flag is not used.

[droot]

Looks good to me. Few questions.

[droot]

I am thinking if there is a good way to indicate the steps are running in dry-run mode. I could imagine myself mid-way freaking out if I actually applied or it's dry-run and I will have to scroll back to look at the command args.

The previous layout with (dry-run suffix wasn't terrible. What's the reasoning behind this change ?

[mortent]

There have been some discussions around this. The previous output format is just very verbose, as the output on every line is identical, and in fact only prints the value of the flag provided through the flag. This also aligns the different output formats, as only the events output format had the dry-run suffix.

[droot]

is it a boolean ? If yes, we should include the default value (true or false)

if it is boolean, we can probably rename it to --enable-status-events or --{display|show}-status-events ?

[mortent]

I have a PR to change the name to --show-status-events: #2648.

I have updated the docs with the new name and included the default value.