Breadcrumbs unordered list is not semantic

[yaume]

the HTML is not semantic. Coding a breadcrumb as an unordered list makes it seem like the items are on the same hierarchical level, like it's a set of items in a row. The items in a breadcrumb are not, they represent a path, with each link being a "child" of the last.
-- Geert van der Heide
According to `Google guides and BreadcrumbList ordered lists seem to be more semantically good

[brianteeman]

I am closing this as we have a pr. If you create a pr you don't need to create an issue at the same time

[yaume]

Sorry about that