{%-comment-%} lists projects as section cards given a projects hash inputs: include.date_format optional; override the date format string to use include.lead_in optional; override character(s) to precede the date to differentiate it visually include.item_date optional; override the date, will otherwise choose in order: item, article, post, project, page, include.itemprop optional; override the microdata attribute value include.date_class optional; override the class, including microformat classes, to apply to the