CC a11y: publish pagination checklist - create PR

[amyleadem]

Publish the usa-pagination accessibility test checklist items found in the Critical Checklist spreadsheet (Google Doc 🔒).

The process for creating a new accessibility test page can be found in the Creating accessibility checklists - process doc (Google Doc 🔒).

[amyleadem]

Putting this in hold status until the gherkins are reviewed and approved.

[amyleadem]

Moving this into "On deck" status because the gherkins have been reviewed and are ready to be added to the page.