First thing you do is create your own project - Make sure you set the default labels (You can later on return and edit your own project)
Second thing you do is create your first task (Otherwise you would keep seeing the running unicorn)
Third - You invite the community -
Make sure you invite the community with the right link - The link that you would send would set their default project - so for example if your project url is thepalace then make sure you invite them to this url - https://doocrate.com/thepalace/ (This is very important to assign those users to this project and having this project opens defaultly when they open the doocrate)
Forth - Start co-creating together - Let the magic happen.