if short_desc is undefined, then prevent its display
if short_desc is undefined, then prevent its display

regan-sarwas/shortlist-storytelling-template-js,pmacMaps/shortlist-storytelling-template-js,coreybaker/FoundationApp,Esri/shortlist-storytelling-template-js,anarosner/storymap-shortlist-case-studies,Esri/shortlist-storytelling-template-js,regan-sarwas/shortlist-storytelling-template-js,pmacMaps/shortlist-storytelling-template-js,anarosner/storymap-shortlist-case-studies