updated documentation about PATH envvar and composer gloab require
updated documentation about PATH envvar and composer gloab require

phpmetrics/PhpMetrics,Halleck45/PhpMetrics,Halleck45/PhpMetrics,UFOMelkor/PhpMetrics,phpmetrics/PhpMetrics,phpmetrics/PhpMetrics,UFOMelkor/PhpMetrics,UFOMelkor/PhpMetrics