anchor.diff:                      | The standard value is calculated based on the UUID (even = alex, odd = steve).<br>
                       | Usernames always default to steve.
                     td
  -                    | The image to be served when the id has no skin (404).<br>
  +                    | The image to be served when the userid has no skin (404).<br>
                       | Valid options are
                       a(href="/avatars/0?default=steve")  steve
                       | ,
  
positive.code:                     | The standard value is calculated based on the UUID (even = alex, odd = steve).<br>
                      | Usernames always default to steve.
                    td
                      | The image to be served when the id has no skin (404).<br>
                      | Valid options are
                      a(href="/skins/0?default=steve")  steve
                      | ,
  
negative.code:           a(href="#avatars")
              h3 Avatars
            | Replace
            mark.green  userid
            |  with a Mojang <b>UUID</b> or <b>username</b> to get the related head. All images are PNGs.
            .code
              | #{domain}/avatars/
              mark.green userid
  
            section
              a(id="avatar-parameters" class="anchor")
  