Accessibility: Feature page sidebar menu identifiable as a navigation landmark

[sarah-cul]

Issue Description - WCAG standard

The sidebar section on feature pages is a navigation menu and should be identified that way to help screen readers better interpret its purpose

Method of discovery

Use a browser extension such as 'SkipTo Landmarks & Headings' that can list the landmarks and headings for any page

Steps to Reproduce

View a feature page for an exhibit. Check that the sidebar is identified in a meaningful way. Currently it shows the links as headers (h2). The section is showing as a complimentary section identified as "Limit your search".

Suggested solution

use <nav> tags to wrap the menu, and label it something like "Secondary" or "Feature pages" to distinguish it from the other navigations (main, breadcrumbs, footer).