This guide shows how you can invite a team member to your workspace. Also, this guide shows how you can join a team or workspace when invited.
Video Guide
How to Add a Team Member
Click on the User menu at the bottom-left, and click on the workspace Settings
Click on Team from the Workspace settings
Click on the Invite Member button at the top-right.
Enter the Team member email, and select their access level (Admin or Member).
Joining a Team
Check your email for the invitation link that was sent to you.
Click on the Accept Invitation or copy the link to your browser.
Fill out the sign up form, submit, and then verify your email address.
Now click on the Accept Invitation on the next screen that load.
NOTE: You can join multiple workspaces. And can switch between each. Also, a default workspace is created for you when you signup, this may expire, it doesn't affect your access to your team's workspace.