Clarify customer swag orders

Why is this change being made?

This MR works to clarify the suggestions made to sales team members using the Printfection sales order link to place swag orders for customers and prospects. Before, this information was kept in an issue, but it is much easier to access if it lives in the handbook.

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