add payed Meetup for development partners

[mdonges]

• [x] create paied Meetup group @mdonges
• [x] create forwarding email for leads @mdonges
• [ ] create partner welcome video
• [x] link magnus to it @mdonges
• [ ] create google form @rajinderjhol
• [ ] check google table @meinmagnum
• [ ] forward form link to all leads @meinmagnum