update Readme with note on Windows specific issues
update Readme with note on Windows specific issues

usine/wp-usine,MozaikAgency/wp-theme-starter,MozaikAgency/wp-theme-bootstrap,tylershuster/hotbox-theme-dev,MozaikAgency/wp-theme-starter,usine/wp-usine,MozaikAgency/wp-theme-bootstrap,tylershuster/wp-theme-starter,tylershuster/wp-theme-starter,juandak16/wp-theme-starter,champagne-randy/wp-theme-bootstrap,juandak16/wp-theme-starter,champagne-randy/wp-theme-bootstrap,tylershuster/hotbox-theme-dev