Update free-programming-books-langs.md (#11464)

A book on C++ standard coding practices has also been added to the 'By Programming Language' section.

Author: margaret-hu

Diff for: books/free-programming-books-langs.md

@@ -515,6 +515,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [A Complete Guide to Standard C++ Algorithms](https://github.com/HappyCerberus/book-cpp-algorithms) - Šimon Tóth (PDF, LaTeX) *(:construction: in process)*
 * [An Introduction to the USA Computing Olympiad, C++ Edition](https://darrenyao.com/usacobook/cpp.pdf) - Darren Yao (PDF)
 * [C++ Annotations](https://fbb-git.gitlab.io/cppannotations/) - Frank B. Brokken (HTML, PDF)
+* [C++ Coding Standard](https://possibility.com/Cpp/CppCodingStandard.html) - Todd Hoff (HTML, PDF)
 * [C++ Core Guidelines](https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md) - `edt.:` Bjarne Stroustrup, Herb Sutter
 * [C++ For Programmers](https://tfetimes.com/wp-content/uploads/2015/04/c-for-c-programmers.pdf) - JT Kalnay (PDF)
 * [C++ GUI Programming With Qt 3](https://ptgmedia.pearsoncmg.com/images/0131240722/downloads/blanchette_book.pdf) - Jasmin Blanchette, Mark Summerfield (PDF)