Add stuff on landing page

[Cheukting]

We need to add stuff for a new landing page:

• Date of conference: 4th Dec 2021
• CfP page: See Putting CfP on the landing page #84
• Call for sponsors (sponsor package need to be done - will put statistic together as well)
• Recruit Volunteers (recruitment forms need to be done)
• Recruit CfP review committee (forms need to be done)
• AMA session on 23rd Sep (maybe using jitsi)