Machine Learning: Add darknet (close fffaraz#530)

Author: myd7349

README.md

@@ -549,6 +549,7 @@ A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny
 
 * [Caffe](https://github.com/BVLC/caffe) - A fast framework for neural networks. [BSD]
 * [CCV](https://github.com/liuliu/ccv) - C-based/Cached/Core Computer Vision Library, A Modern Computer Vision Library. [BSD]
+* [darknet](https://github.com/pjreddie/darknet) - Open source neural network framework written in C and CUDA. [PublicDomain] [website](https://pjreddie.com/darknet/)
 * [Dlib](https://github.com/davisking/dlib) :zap: - A modern C++11 machine learning, computer vision, numerical optimization, and deep learning toolkit. [Boost] [website](http://dlib.net/)
 * [Fido](https://github.com/FidoProject/Fido) - A highly-modular C++ machine learning library for embedded electronics and robotics. [MIT] [website](http://fidoproject.github.io/)
 * [flashlight](https://github.com/facebookresearch/flashlight) - A fast, flexible machine learning library from Facebook AI Research written entirely in C++ and based on the ArrayFire tensor library. [BSD-3-Clause] [website](https://fl.readthedocs.io/en/latest/)