In themeoptions > header tab – sidenav insert you can add the below code –
<ul class="social-list clearfix center"><li><a class="facebook" href="#" target="_blank"><i class="icon-facebook5"></i></a></li><li><a class="twitter" href="#" target="_blank"><i class="icon-twitter5"></i></a></li><li><a class="youtube" href="#" target="_blank"><i class="icon-youtube"></i></a></li><li><a class="googleplus" href="#" target="_blank"><i class="icon-googleplus2"></i></a></li><li><a class="instagram" href="#" target="_blank"><i class="icon-instagram3"></i></a></li></ul>