Docs (readme): Simplify CI entrypoint scripts commands example #166

Job	Run time
test-powershell-5-1-windows-2022	1m 40s
test-powershell-5-1-windows-2019	1m 28s
test-powershell-6-2-container	18s
test-powershell-6-1-container	19s
test-powershell-7-0-container	17s
test-powershell-7-1-container	15s
test-powershell-7-2-container	17s
test-powershell-7-3-container	16s
test-powershell-7-4-container	16s
test-powershell-core-linux	26s
test-powershell-core-macos	19s
test-powershell-core-windows	55s
generate-and-release	12s
	6m 58s

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