updates required for howto-cards
related to https://gitlab.lcsb.uni.lu/R3/kanban/board/-/issues/351
stuff to do:
-
easily extensible metadata -
sorted out ordering of everything (#10 (closed)) -
"extra listing" metadata for both pages and tags (to support https://gitlab.lcsb.uni.lu/R3/kanban/board/-/issues/368), as an extension of the previous