Single Profiles have unstructured headings

[troyrutter]

This was mentioned also in the Drupal/general slack by J. Rearrick.

The profile headings are unstructured because the H1 tags are styled to look like H2s, an H3 tag is used for the "Contact" heading (thus being out of order) and then an H4 tag is used for the categories, resulting in another unordered heading.

Suggest looking how this was solved in the other platforms and making similar changes.