I installed the template Gusto and the quickstart package following the instructions contained in the pdf file but the site does not contain the sample data

Hi there,
please make sure you tick in the last step >> install sample data
www.joomlaplates.com/support/documentation/install-demo-content

Thanks I review all step and the site work.
But I can not find where to change the information when you enter the site's link on facebook or other site, the preview displays the information on the GUSTO template and I do not understand where they change

Please read the instructions and look to the module positions.
www.joomlaplates.com/support/documentation/social-icons-setup