Small refinements and fixes to new release process doc #911

Job	Run time
build-client / build-client	29s
setup-selenium / setup_chromedriver	3s
Test (3.8, 0)	46m 8s
Test (3.8, 1)	56m 1s
Test (3.8, 2)	51m 57s
	2h 34m 38s

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