Readme added #59

Job	Run time
Docker	1m 6s
GitHub Action	7s
Linters (8.1)	53s
Phar (8.1)	35s
Linters (8.2)	51s
Phar (8.2)	32s
PHPUnit (8.1, xdebug, --prefer-lowest)	37s
Linters (8.3)	49s
Phar (8.3)	35s
PHPUnit (8.1, xdebug)	39s
Reports (8.1)	47s
PHPUnit (8.1, none, --prefer-lowest)	23s
Reports (8.2)	31s
PHPUnit (8.1, none)	24s
Reports (8.3)	38s
PHPUnit (8.2, xdebug, --prefer-lowest)	33s
PHPUnit (8.2, xdebug)	39s
PHPUnit (8.2, none, --prefer-lowest)	24s
PHPUnit (8.2, none)	24s
PHPUnit (8.3, xdebug, --prefer-lowest)	33s
PHPUnit (8.3, xdebug)	37s
PHPUnit (8.3, none, --prefer-lowest)	20s
PHPUnit (8.3, none)	22s
	13m 19s

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