Clarification on COGA technique for Identify Purpose

Hi all,

In the Examples section of the success criterion 'Identify Purpose' - it 
is suggested that the 'The links in the navigation of a website are 
marked-up so that users can add their own icons' but seems to be no 
steer on how this is done. [1]

Does it imply the use of some other semantic that describes the 
container widget of the links? Or a role for the links themselves? If 
native HTML semantics are not sufficient its seems to be there should be 
an explanation of why.

What am I missing?

Thanks

[1] https://www.w3.org/WAI/WCAG21/Understanding/identify-purpose.html
-- 
Joshue O Connor
Director | InterAccess.ie