docs: correct and extend ping debug instructions #2588

Job	Run time
ping-cli	9s
wait	37s
wait2	45s
wait2-delay-120	2m 24s
wait2-delay-50	1m 31s
wait3	1m 29s
wait3-for-200-seconds	4m 16s
wait4	30s
wait-multiple	1m 51s
wait-on-nextjs	25s
wait-on-vite	26s
wait-server-starts-after-100-seconds	2m 4s
wait-using-custom-command	38s
	17m 5s

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