Update README.md

Author: sir-gon

README.md

@@ -40,6 +40,7 @@ depending on the chosen programming language:
 - [Go / Golang: algorithm-exercises-go](https://github.com/sir-gon/algorithm-exercises-go)
 - [Java: algorithm-exercises-java](https://github.com/sir-gon/algorithm-exercises-java)
 - [.NET / C#: algorithm-exercises-csharp](https://github.com/sir-gon/algorithm-exercises-csharp)
+- [C++17: algorithm-exercises-cpp](https://github.com/sir-gon/algorithm-exercises-cpp)
 
 ## Objetives