Could approach this section in a number of different ways. Here's an example of how we've featured Extension on the main AGNR site - https://agnr.umd.edu/extension
We've treated it as a general landing page with some buttons and displays that link you to more specifics areas of Extension.umd.edu.
Another option is going very high-level and generic with some boilerplate language on Extension, similar to what we've done for the "Maryland State Residents" section of the main AGNR homepage - https://agnr.umd.edu/about/information/maryland-state-residents