scroll to selected repeated section after clicking 'Add'
scroll to selected repeated section after clicking 'Add'

partially fixes #209 -- the page still completely reloads but at least
it opens the relevant section and scrolls back to where you were so you
don't lose context

theodi/open-data-certificate,zoul/open-data-certificate,ahmadassaf/open-data-certificate,istvan-antal/open-data-certificate,Motejl/open-data-certificate,zoul/open-data-certificate,Motejl/open-data-certificate,theodi/open-data-certificate,theodi/open-data-certificate,istvan-antal/open-data-certificate,Motejl/open-data-certificate,Motejl/open-data-certificate,zoul/open-data-certificate,ahmadassaf/open-data-certificate,ahmadassaf/open-data-certificate,theodi/open-data-certificate,ahmadassaf/open-data-certificate,zoul/open-data-certificate,istvan-antal/open-data-certificate