Write board meetings page

[kberzinch]

Board meetings: https://dgv1dqm79k365.cloudfront.net/corporate/board-meetings/

Also minor adjustments to the calendar page: https://dgv1dqm79k365.cloudfront.net/corporate/calendar/

[jspalten]

Couple pieces of feedback, not exactly required changes but things that might be beneficial:

1. Do we have a preferred signature software for the meeting minutes? If I were to put one forward I'd suggest https://dochub.com/
2. I think it would also be beneficial to have a template for a budget sheet to help our review. I think we're starting to converge on one but I'm not sure where it lives