When you register on the site for the first time, you will see several menu entries under your profile link when you navigate to the "My account" page:

These links, "Add your CV", "Add a project" and "Add a document", may be used to create new content for your profile. The CV, or curriculum vitae, is your résumé on the site, while the other two links allow you to add a project overview and one or more documents, respectively.

The "Add a page" link allows you to add an unclassified page to this list. Such a page may include whatever content you want to present as part of your profile.

Note that if any of these have not been created, the link will not be visible to other users. For example, if you have not created a CV, users will not see the "CV" link under your profile. Once you have created a CV, project overview, document, or page, the link will become visible and will look like this to other users: