A Scrum team has been assigned a new project and decided to add the following statement to the Definition of Done: Only features for which a functional design is drafted and accepted are put on the Sprint Backlog. The Scrum Master reviews this and states: Documentation is needed. For each feature, the design should be created or updated. We need to add to the Definition of Done and keep this in mind when estimating tasks for the next Sprint Backlog. Why does the Scrum Master say this?