Publicity - share the opening of registrations widely

• News section of camp website
• FSCI notice
• ActivityPub/Pleroma - moved to friendica
• Camp announce mailing list
• camp matrix/xmpp/irc room
• other mailing lists and groups #31 (closed)
• personal social media accounts and groups
• as a banner on all services we manage - already active on git.fosscommunity.in and fsci.in