docs: update README (#412) #240

Job	Run time
js-test-and-release / check	1m 9s
js-test-and-release / test-chrome	17s
js-test-and-release / test-electron-main	23s
js-test-and-release / test-chrome-webworker	12s
js-test-and-release / test-electron-renderer	14s
js-test-and-release / test-firefox	14s
js-test-and-release / test-firefox-webworker	13s
js-test-and-release / test-node (windows-latest, lts/*)	3m 4s
js-test-and-release / test-webkit (ubuntu-latest, lts/*)	23s
js-test-and-release / test-node (ubuntu-latest, lts/*)	12s
js-test-and-release / test-webkit (macos-latest, lts/*)	2m 35s
js-test-and-release / test-node (macos-latest, lts/*)	3m 42s
js-test-and-release / test-webkit-webworker (ubuntu-latest, lts/*)	17s
js-test-and-release / test-webkit-webworker (macos-latest, lts/*)	2m 24s
js-test-and-release / release-check	2s
js-test-and-release / release	33s
	15m 54s

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