CLI documentation for --pool option is incorrect for default value

[austinhnelson]

Describe the bug

The description for the --pool option in the cli documentation is not correct for the default value. The default value used to be threads but was updated to forks in 2.0: https://vitest.dev/guide/migration.html

Reproduction

https://vitest.dev/guide/cli.html#pool

System Info

Standard browser

Used Package Manager

npm

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[AriPerkkio]

PR welcome:

vitest/docs/guide/cli-generated.md

Lines 393 to 398 in d93989e

	### pool
	- **CLI:** `--pool <pool>`
	- **Config:** [pool](/config/#pool)
	Specify pool, if not running in the browser (default: `threads`)