Added simple instructions to build project.

README.md

@@ -5,10 +5,10 @@ Game engine project by Didgy (Nils Petter Skålerud)
 How to build:
 
 Windows:
-The project can be built as-is on MSVC and MinGW
+The project can be built as-is on MSVC and MinGW using CMake
 
 Linux:
-Currently not supported. Will support if I find an elegant solution for GLFW, or whenever I go back to SDL2 for windowing.
+Should just be a matter of doing cmake ./ and then make in terminal. Will write detailed 
 
 Ubuntu packages required to build:
 libglew-dev
@@ -16,6 +16,13 @@ libglfw3-dev
 
 NOTE! 32-bit is not supported.
 
+How to install:
+git clone https://github.com/Didgy74/DEngine.git
+git submodule init
+git submodule update
+cmake ./
+make
+
 
 The engine uses the following libraries:
 * GLEW