add office hours to sprint website

[reshamas]

We can add the office hours to the sprint website.

Pre-sprint Office Hours, Feb 11:
https://www.meetup.com/data-umbrella/events/283765923/

Post-sprint Office Hours, Feb 25:
https://www.meetup.com/data-umbrella/events/283766699/

@mjhajharia @OriolAbril

Please review the Meetup events and cards and confirm the dates / times, etc are ok.
If you see any adjustments needed in the Meetup event, you should be able to edit them.
@BerylKanali and I can edit the Canva cards, if needed.

[reshamas]

FYI:
We will be adding the same office hours events to the Data Umbrella Africa Meetup group too.

[mjhajharia]

done! meetup cards look good too