Auto-generate events page

[tpfau]

To make the Events page sustainable we need an automated way to generate it.
This could either be by simply replacing the page by a calendar, or (preferably) by auto-extracting Future workshops from us and partners from the calendar and build the events page automatically based on it.

Requirements for this:
All events need to have a URL field, so that we can build a link to the Event page (possibly this could also be extracted from the description, if no other description is provided).
All events need a SUMMARY field, which is a short title of the event, that we can list.
Optional: A DESCRIPTION field which we can show as a kind of accordion, for events.

Layout is a question, but if we have this info in the events, we can probably set something up.