add crafting interpreter in C

Author: tuvtran

README.md

@@ -26,6 +26,7 @@ To get started, simply fork this repo. Please refer to [CONTRIBUTING.md](CONTRIB
 
 ## C/C++:
 
+* [Build an Interpreter in C](http://www.craftinginterpreters.com/)
 * [Write a Shell in C](https://brennan.io/2015/01/16/write-a-shell-in-c/)
 * [Write a FUSE Filesystem](https://www.cs.nmsu.edu/~pfeiffer/fuse-tutorial/)
 * [Build Your Own Text Editor](http://viewsourcecode.org/snaptoken/kilo/)