update members council, published meeting agendas, and certification working group contacts#484

alee merged 2 commits intoopenmodelingfoundation:developopenmodelingfoundation/openmodelingfoundation.github.io:developfrom

CharlotteTill:Jan2026FixesCharlotteTill/openmodelingfoundation.github.io:Jan2026FixesCopy head branch name to clipboard