optimize preview for linking on other plattforms to grouprise
If i have a link to an artice, for example an event, I often paste it to other plattforms (Facebook / Messengers like Telegram or Signal). For other link-source-websites I get a preview of the content to get Information what's behind. Grouprise is always sending a default text + image. In Stadtgestalten e.g. "Stadtgestalten ist eine freie und nicht-kommerzielle Plattform zur Sichtbarmachung, Vernetzung und Unterstützung der Arbeit von engagierten ...". This feels a little bit unattractive to click to the link an jump to the Grouprise instance.
I think some HTML5 meta-properties should solve it.
Preview in Telegram Messenger: Screenshot_2018-12-17_23-53-11