Updated the Brazilian Portuguese translation.
Updated the Brazilian Portuguese translation.

* Fixed the credits
* Fixed the capitalization
* Revamped the style

jnavila/gnome-doc-utils,Distrotech/gnome-doc-utils,Distrotech/yelp-xsl,Distrotech/yelp-xsl,Distrotech/gnome-doc-utils,jnavila/gnome-doc-utils