Portuguese translation

Introduction, setup and first HTML tutorial translated to Portuguese. It will have to be verified by native speaking developer. There is no structure to support for multilingual structure yet. Hope this allow some Brazilians to pick up the work.
"Sentou num carvalho" its not a nice sentence, it has some erotic meaning hehehe
I think `Uma sábia e anciã coruja parou em um carvalho` it will be better