Update readme #159

Job	Run time
Verify Docker	1m 8s
Reports (8.1)	33s
Linters (8.1)	38s
PHPUnit (8.1, xdebug, --prefer-lowest)	49s
Reports (8.2)	28s
PHPUnit (8.1, xdebug)	50s
Linters (8.2)	41s
Reports (8.3)	32s
PHPUnit (8.1, none, --prefer-lowest)	33s
Linters (8.3)	40s
Verify PHAR (8.1)	26s
PHPUnit (8.1, none)	36s
Verify PHAR (8.2)	32s
PHPUnit (8.2, xdebug, --prefer-lowest)	32s
Verify PHP binary	9s
Verify PHAR (8.3)	27s
PHPUnit (8.2, xdebug)	36s
PHPUnit (8.2, none, --prefer-lowest)	31s
PHPUnit (8.2, none)	32s
PHPUnit (8.3, xdebug, --prefer-lowest)	29s
PHPUnit (8.3, xdebug)	38s
PHPUnit (8.3, none, --prefer-lowest)	28s
PHPUnit (8.3, none)	27s
	13m 15s

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