Update build instructions

README.md

@@ -1,17 +1,20 @@
 # openVulkano
 openVulkano is a simple Vulkan rendering engine which is capable of recording command buffers from multiple threads.
 
-## Building
-### Visual Studio
-#### Requierements
-* Visual Studio 2019, 2017 might work but not tested
-* [Vulkan SDK v1.1.x](https://vulkan.lunarg.com/sdk/home#windows)
-* [Assimp SDK v4.1](https://github.com/assimp/assimp/releases/download/v4.1.0/assimp-sdk-4.1.0-setup.exe)
-* git
+## Building:
+### Requirements:
+* Git
+* CMake
+* C++ 17 compatible compiler
 
-#### Build it
-1. Clone it `git clone --recursive https://github.com/GeorgH93/openVulkano`
-2. Open the `openVulkanoCpp.sln` with Visual Studio
-3. If you are not using the default path of Assimp change it in the project properties
-4. Use Visual Studio to build or run it
+### Build from source:
+```bash
+git clone https://github.com/GeorgH93/openVulkano.git
+cd openVulkano
+mkdir build
+cd build
+cmake -DCMAKE_BUILD_TYPE=Release ..
+cmake --build . --config Release
+```
+