[teams] Core is a subset of packaging

Temporary note as we figure this distinction out

modules/ROOT/pages/index.adoc

@@ -104,6 +104,8 @@ If the vote does not pass, the team is dissolved as well.
 Core team members have oversight over the entire project.
 They also have the final say on packaging and security matters, and are the sole arbiters of the `main` repository.
 
+NOTE: The core team may also do everything the packaging team may do during the (currently unlimited) transitional period.
+
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