added faq incl. ajax to readme
added faq incl. ajax to readme

kriskbx/whatsapp-sharing,chocochipz/whatsapp-sharing,chocochipz/whatsapp-sharing,cvrlebg/whatsapp-sharing,yazeed/whatsapp-sharing,yazeed/whatsapp-sharing,moklick/whatsapp-sharing,cvrlebg/whatsapp-sharing,kriskbx/whatsapp-sharing,luisfergromo/whatsapp-sharing,luisfergromo/whatsapp-sharing