Update metrics.php
Update metrics.php

~ fixed some double quotes that needed to be escaped
fonsecas72/PhpMetrics,UFOMelkor/PhpMetrics,UFOMelkor/PhpMetrics,umair-gujjar/PhpMetrics,igrybkov/PhpMetrics,NicolasMugnier/PhpMetrics,shaunl/PhpMetrics,umair-gujjar/PhpMetrics,NicolasMugnier/PhpMetrics,phpmetrics/PhpMetrics,phpmetrics/PhpMetrics,phpmetrics/PhpMetrics,shaunl/PhpMetrics,UFOMelkor/PhpMetrics,igrybkov/PhpMetrics,Halleck45/PhpMetrics,Halleck45/PhpMetrics,fonsecas72/PhpMetrics,hacfi/PhpMetrics,meadsteve/PhpMetrics