Merge pull request #1217 from drgarcia1986/master

Added brazillian book about RegEx

free-programming-books-pt_BR.md

@@ -11,6 +11,7 @@
 * [PHP](#php)
 * [LaTeX](#latex)
 * [Python](#python)
+* [RegEx](#regex)
 * [Ruby](#ruby)
 * [Shell Script](#shell)
 * [Lua](#lua)
@@ -75,6 +76,10 @@
 * [O tutorial de Python](http://turing.com.br/pydoc/2.7/tutorial/)
 
 
+### RegEx
+* [Expressões Regulares - Guia de Consulta Rápida](http://aurelio.net/regex/guia/)
+
+
 ### Ruby
 * [Aprenda a Programar](http://aprendaaprogramar.rubyonrails.com.br)
 * [O (comovente) guia de Ruby do Why](http://why.carlosbrando.com/)