Update README

README.md

@@ -1,5 +1,40 @@
 # CUDANet
 
-requirements:
+:warning: Work in progress
-- CUDA
+
-- Google Test 
+Convolutional Neural Network inference library running on CUDA.
+
+## Features
+
+- [x] Input layer
+- [x] Dense (fully-connected) layer
+- [x] Conv2d layer
+- [ ] Max pooling
+- [ ] Average pooling
+- [ ] Concat layer
+- [x] Sigmoid activation
+- [x] ReLU activation
+- [ ] Softmax activation
+- [ ] Load weights from file 
+
+## Usage
+
+**requirements**
+- [cmake](https://cmake.org/)
+- [CUDA](https://developer.nvidia.com/cuda-downloads)
+- [Google Test](https://github.com/google/googletest) (for testing only)
+
+**build and test**
+
+```sh
+mkdir build
+cd build
+cmake -S ..
+make
+```
+
+Run tests
+
+```sh
+./test/test_main
+```