A page has already been created for you to add a short introduction or short biography. By default, it is set up as the homepage of your site. You can change this in Appearance > Customize > Homepage Settings. Remember, this is an invitation to viewers to delve deeper into your site, so it should be succinct and inviting, especially as your actual career timeline will be in another part of the site.
By default, the About page is set up with a “shortcode” that simply displays the bio and portrait photo you uploaded during registration. If you wish to edit this placeholder content, please submit a help request and we’ll be happy to assist you.
See also: Adding/Editing Page & Post Content