Twenty Fifteen: Document the `$more` parameter in `twentyfifteen_exce… #35325

Job	Run time
Check PHP compatibility / Run compatibility checks	16s
Slack Notifications / Prepare notifications	6s
Slack Notifications / Success notifications	4s
Slack Notifications / Failure notifications	0s
Slack Notifications / Fixed notifications	0s
Slack Notifications / Cancelled notifications	0s
Failed workflow tasks	0s
	26s

Provide feedback