You can simply share your project URL with others (the URL in your browser that looks like
https://gomockingbird.com/projects/xyz). By default anyone with the link can view the project and anyone on your team can edit the project, but if you'd like to fine-tune permissions, you can click on the "Share" button in the toolbar:
This will open the Share settings panel:
From here, you can see your share URL, change the link access settings, or invite specific people and control whether they can view or edit.