Update free-programming-books-pt_BR.md

I changed the name by the book title , so it makes more sense !
the reference of the license into file 
http://www.etelg.com.br/paginaete/downloads/informatica/php.pdf

adding a new reference to php
the reference of the license is here! https://github.com/PHPSP/php-the-right-way

free-programming-books-pt_BR.md

@@ -72,6 +72,7 @@
 * [Tudo sobre Meteor](http://udgwebdev.com/meteor)
 
 ### Php
+* [Curso Linguagem PHP 2000](http://www.etelg.com.br/paginaete/downloads/informatica/php.pdf)
 * [PHP Do jeito certo](http://br.phptherightway.com/)
 
 ### LaTeX