Exempt our meeting mechanics documents from the CC-BY-SA part and turn them into CC-BY or even CC-0

The meeting mechanism we use in the learning path (shaped by @rrrutledge and many others) has proven to work really well over time and people.
It turns out to be even valuable for other non learning path groups (e.g. our foundation board meetings).

However, the material is still CC-BY-SA licensed and thus would need to return changes back to its origin. Which some people might not be comfortable with for their corporate changes.
While I fully stand behind our choice of CC-BY-SA for the learning path material, I would like to ask to change the license for the above mentioned material to CC-BY (only attribution) or even CC-0 (as public domain as it gets, EU/DE just doesn't know the US public domain concept).

Git says that there is at least on-the-record contribution to it by @rrrutledge, @tsadler1988, @fioddor and of course @arnom-ms (and me, but I'm asking for the change, so count me as "for"). What do you think about this change?

How could we do it:

• Add a note to our README document and add the chosen license as a file to the meeting folder. We could also add Markdown comments indicating the license to those documents.

Untersuche die Dokumente im Meeting-Ordner und die README, um das Material zu identifizieren, das von der vorgeschlagenen Lizenzänderung abgedeckt wird. Prüfe die aufgeführten Mitwirkenden und die CC-BY- bzw. CC-0-Optionen des Issues, bevor du entscheidest, was das Projekt akzeptiert. Als erledigt gilt die Aufgabe, wenn die gewählte Lizenz in der README oder einer Lizenzdatei dokumentiert ist und, wo angemessen, Markdown-Lizenzkommentare hinzugefügt wurden.