Merge pull request fffaraz#1235 from abdullahilbaki/patch-2

Update books.md

Author: fffaraz

books.md

@@ -25,7 +25,7 @@
 * [C++ GUI Programming With Qt 3](http://www.computer-books.us/cpp_0010.php)
 * [C++ Succinctly, Syncfusion](http://www.syncfusion.com/resources/techportal/ebooks/cplusplus) (PDF, Kindle) *(Just fill the fields with any values)*
 * [CS106X Programming Abstractions in C++](http://www.stanford.edu/class/cs106x/)
-* [Data Structures and Algorithms with Object-Oriented Design Patterns in C++](http://www.brpreiss.com/books/opus4/index.html)
+* [Data Structures and Algorithms with Object-Oriented Design Patterns in C++](https://book.huihoo.com/data-structures-and-algorithms-with-object-oriented-design-patterns-in-c++/html/)
 * [Financial Numerical Recipes in C++](http://finance.bi.no/~bernt/gcc_prog/recipes/) - Bernt Arne Ødegaard
 * [Game Programming Patterns](http://gameprogrammingpatterns.com/)
 * [Google's C++ Style Guide](https://google.github.io/styleguide/cppguide.html)