fix some nits within pt-br welcome page.

PR: 7822
Submitted by: Andreas Hasenack <andreas@netbank.com.br>,
              Ranier Vilela Fonseca <ranier@cultura.com.br>
Reviewed by: Fabio Mengue <fabio@ccuec.unicamp.br>,
             Co-workers of Lars ;-)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@98624 13f79535-47bb-0310-9956-ffa450edef68