Add a new c/c++ project (#403)

Author: jiyeonseo

README.md

@@ -62,6 +62,7 @@ To get started, simply fork this repo. Please refer to [CONTRIBUTING.md](CONTRIB
 - [Linux Container in 500 Lines of Code](https://blog.lizzie.io/linux-containers-in-500-loc.html)
 - [Write Your Own Virtual Machine](https://justinmeiners.github.io/lc3-vm/)
 - [Learning KVM - Implement Your Own Linux Kernel](https://david942j.blogspot.com/2018/10/note-learning-kvm-implement-your-own.html)
+- [Build Your Own Redis with C/C++](https://build-your-own.org/redis/)
 - Write a C compiler
   - [Part 1: Integers, Lexing and Code Generation](https://norasandler.com/2017/11/29/Write-a-Compiler.html)
   - [Part 2: Unary Operators](https://norasandler.com/2017/12/05/Write-a-Compiler-2.html)