Add a label to the member that is open: an existing label is picked from the list, a new name creates the label.
Examples
When I add the label "Reader" to the member
When I add the label "Friend" to the member
When we add the label "Reader" to the member
And I add the label "Friend" to the member
And we add the label "Supporter" to the member
Pattern
When(/^(?:I |we )?add the label "([^"]*)" to the member$/, …)
Part of @webship-js/ghost-steps (github.com/webship/ghost-steps), a step pack for Webship-js 2.0.x.