New Pascal Book (#6523)

* Added new Pascal Book

* breakline

* added summary link

Co-authored-by: Victor <victorgsbarbosa@gmail.com>

books/free-programming-books-pt_BR.md

@@ -38,6 +38,7 @@
 * [LaTeX](#latex)
 * [LISP](#lisp)
 * [Lua](#lua)
+* [Pascal](#pascal)
 * [PHP](#php)
   * [Symfony](#symfony)
 * [Python](#python)
@@ -306,6 +307,11 @@
 * [Manual de Referência de Lua 5.2](http://www.lua.org/manual/5.2/pt/)
 
 
+### Pascal
+
+* [Algoritmos e Estruturas de Dados I](https://www.inf.ufpr.br/marcos/livro_alg1/livro_alg1.pdf) - Marcos Alexandre Castilho, Fabiano Silva e Daniel Weingaertner (PDF)
+
+
 ### PHP
 
 * [Api REST Com Silex no GAE](http://bit.ly/ebook-silex) - Nanderson Castro (PDF, EPUB, MOBI)