DG Model Component: Class Diagram no longer reflects `Person` class fully.

[Tan-Jin-Waye]

The class diagram for a Person class is specified below:

However, the Person class has been augmented with Company and InternshipId fields as specified below:

There is no mention that the diagram is abstracting away these new classes.

[nus-pe-script]

Your response not required for this bug as the team has accepted the bug as it is.