Clean up documentation and code #521

Job	Run time
Check previous runs	10s
Check generated files and formatting	13s
PHPStan (8.4)	22s
PHPUnit tests (ubuntu-latest, 8.4)	1m 29s
PHPStan (7.4)	23s
PHPUnit tests (windows-latest, 8.4)	2m 15s
PHPUnit tests (macos-latest, 8.4)	1m 49s
PHPUnit tests (ubuntu-latest, 8.3)	1m 31s
PHPUnit tests (ubuntu-latest, 8.2)	1m 25s
PHPUnit tests (ubuntu-latest, 8.1)	1m 30s
PHPUnit tests (ubuntu-latest, 8.0)	1m 19s
PHPUnit tests (ubuntu-latest, 7.4)	1m 14s
Build phar and man page	37s
Test phar (ubuntu-latest, 8.4)	13s
Test phar (windows-latest, 8.4)	32s
Test phar (macos-latest, 8.4)	1m 8s
Test phar (ubuntu-latest, 8.3)	9s
Test phar (ubuntu-latest, 8.2)	14s
Test phar (ubuntu-latest, 8.1)	10s
Test phar (ubuntu-latest, 8.0)	17s
Test phar (ubuntu-latest, 7.4)	9s
Integration tests (laravel/framework, --include-if-php --preset laravel src tests bin)	44s
Integration tests (drupal/drupal, --exclude '/\/(\.git\|\.hg\|\.svn\|_?build\|dist\|vendor\|core\/lib\/...	2m 39s
Integration tests (symfony/symfony, --include-if-php --preset symfony .)	3m 27s
Integration tests (WordPress/WordPress, --include-if-php --preset wordpress .)	1m 16s
	25m 15s

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