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.

Examinez les documents du dossier de réunion et la README afin d’identifier le contenu couvert par la modification de licence proposée. Examinez les contributeurs recensés et les options CC-BY et CC-0 de l’issue avant de décider ce que le projet accepte. La tâche est considérée comme terminée lorsque la licence choisie est documentée dans la README ou dans un fichier de licence, avec l’ajout de commentaires de licence Markdown lorsque cela est approprié.