On this page, share any letters of recommendation from past/current employers, mentors, etc. that you may have. Typically, it is best to share these as embedded PDFs. You will want to provide a brief paragraph before each letter, explaining who the letter writer is and your relationship to them (ex: how long did you work with this person, in what capacity, so on).
If you do not have any such letters, you can remove this page from your website either by deleting the page or removing it from the menu (under Appearances in the Dashboard).