updated Seat Link entry to accurately reflect changes pushed in the patch release

Why is this change being made?

We changed the Seat Link behavior and want the post to accurately reflect the way it works.

Does this MR meet the acceptance criteria?

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what