Florian Bruhin 00996adeb8 Update talks/trainings page (#7661) ...

* Update talks/trainings page

- Remove past webinar
- Add new open training
- Add some talks/webinars by Oliver Bestwalter and by me
- Remove some stale link targets

* Move sidebar to index

2020-08-25 17:02:33 +02:00

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Update talks/trainings page (#7661)

2020-08-25 17:02:33 +02:00