Make build site script work in forked repositories.
Make build site script work in forked repositories.

Designated GITHUB_REMOTE always to the main repository.
As a consequence, the community is able to update the content but not styling the site, unless they modify the script.

brianjmoore/material-components-ios,sigito/material-components-ios,sigito/material-components-ios,chriscox/material-components-ios,randallli/material-components-ios,material-components/material-components-ios,willlarche/material-components-ios,sigito/material-components-ios,brianjmoore/material-components-ios,material-components/material-components-ios,Eccelor/material-components-ios,willlarche/material-components-ios,brianjmoore/material-components-ios,willlarche/material-components-ios,sigito/material-components-ios,material-components/material-components-ios,chriscox/material-components-ios,randallli/material-components-ios,chriscox/material-components-ios,samnm/material-components-ios,Eccelor/material-components-ios,randallli/material-components-ios,randallli/material-components-ios,samnm/material-components-ios,samnm/material-components-ios,sigito/material-components-ios,brianjmoore/material-components-ios,willlarche/material-components-ios,chriscox/material-components-ios,brianjmoore/material-components-ios,samnm/material-components-ios,Eccelor/material-components-ios,randallli/material-components-ios,willlarche/material-components-ios,chriscox/material-components-ios,samnm/material-components-ios,Eccelor/material-components-ios,randallli/material-components-ios,material-components/material-components-ios,material-components/material-components-ios,Eccelor/material-components-ios