Fix some formatting

free-programming-books-it.md

@@ -64,7 +64,7 @@
 
 ### CSS
 
-* [Guida Completa sviluppo lato Client](http://www.aiutamici.com/PortalWeb/eBook/ebook/Alessandro_Stella-Programmare_per_il_web.pdf)(PDF)
+* [Guida Completa sviluppo lato Client](http://www.aiutamici.com/PortalWeb/eBook/ebook/Alessandro_Stella-Programmare_per_il_web.pdf) (PDF)
 
 
 ### GIT

free-programming-books-zh.md

@@ -355,7 +355,7 @@
 * [C++ 并发编程(基于C++11)](https://chenxiaowei.gitbooks.io/cpp_concurrency_in_action/content/)
 * [C++ 并发编程指南](https://github.com/forhappy/Cplusplus-Concurrency-In-Practice)
 * [CGDB中文手册](https://github.com/leeyiw/cgdb-manual-in-chinese)
-* [Cmake 实践](http://sewm.pku.edu.cn/src/paradise/reference/CMake%20Practice.pdf) (PDF版)
+* [Cmake 实践](http://sewm.pku.edu.cn/src/paradise/reference/CMake%20Practice.pdf) (PDF)
 * [GNU make 指南](http://docs.huihoo.com/gnu/linux/gmake.html)
 * [Google C++ 风格指南](http://zh-google-styleguide.readthedocs.org/en/latest/google-cpp-styleguide/contents/)
 * [QT 教程](http://www.kuqin.com/qtdocument/tutorial.html)

free-programming-books.md

@@ -1253,7 +1253,7 @@
 * [Calculus by Kenneth E Iverson](http://www.jsoftware.com/books/pdf/calculus.pdf) (PDF)
 * [Computers and Mathematical Notation by Kenneth E Iverson](http://www.jsoftware.com/papers/camn.htm)
 * [Concrete Math Companion by Kenneth E Iverson](http://www.jsoftware.com/books/pdf/cmc.pdf) (PDF)
-* [Easy J by Linda Alvord, Norman Thomson](http://www.jsoftware.com/books/pdf/easyj.pdf) (PDF, [Word DOC](http://www.jsoftware.com/books/doc/easyj_doc.zip))
+* [Easy J by Linda Alvord, Norman Thomson](http://www.jsoftware.com/books/pdf/easyj.pdf) (PDF) ([Word DOC](http://www.jsoftware.com/books/doc/easyj_doc.zip))
 * [Exploring Math by Kenneth E Iverson](http://www.jsoftware.com/books/pdf/expmath.pdf) (PDF)
 * [J for C Programmers by Henry Rich](http://www.jsoftware.com/help/jforc/contents.htm)
 * [J Primer](http://www.jsoftware.com/help/primer/contents.htm)