Add table to README.md

[github-actions[bot]]

Acceptance Criteria:

• [x] The README.md has a table at the top like the one shown below indicating which team member is initially taking on which database table, and which is unassigned.

    | Table                       | Team Member  | Github Id     |
    |-----------------------------|--------------|---------------|
    | `UCSBDiningCommonsMenuItem` | Alice        | alice33       |
    | `UCSBOrganization`          | (unassigned) |               |
    | `RecommendationRequest`     | Bob          | robertg       |
    | `MenuItemReview`            | Charlie      | gauchocharlie |
    | `HelpRequest`               | Danielle     | danielle      |
    | `Articles`                  | Eddie        | eddydp        |

[amanpdesai]

Completed!