Add new agenda items

Author: scouten-adobe

docs/modules/meeting-notes/pages/2025-04-21.adoc

@@ -55,8 +55,16 @@ Review link:https://github.com/decentralized-identity/cawg-identity-assertion/pu
 
 NOTE: Not currently calling for WG approval on endorsement assertion. Consider archiving this spec for lack of interest?
 
+=== Media identifiers subgroup
+
+Call for members and getting started. (And apologies for not having done so already.)
+
 === Co-chair election
 
 *Process proposal:* After today's meeting, we will open an election for one co-chair position (to serve alongside Eric Scouten). In the event there are multiple candidates, we will choose the candidate by [San Francisco-style ranked choice voting](https://opavote.com/methods/instant-runoff-voting#san-francisco-rcv). The election will be open for seven calendar days and the new co-chair will serve starting with the next meeting on 7 May.
 
 Open floor for candidates to self-nominate.
+
+=== Brainstorm identity 1.2
+
+What should be on our radar once we complete identity assertion 1.1?