Created Compile your game for Linux (markdown)

Compile-your-game-for-Linux.md

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+To build your raylib game for Linux you need to download raylib git repository and install some dependencies. raylib already comes with ready-to-use makefiles to compile source code and examples. 
+
+raylib has been tested in the following Linux distros: Ubuntu
+
+###Installing dependencies
+
+raylib requires some libraries on Linux, those libraries are GLFW3 (Windows and input management) and OpenAL Soft (audio system management). Just install them:
+
+####Installing GLFW3
+This library depends on some other libraries:
+
+    sudo apt-get install mesa-common-dev-dev libx11 libxrandr libXi-dev-dev xorg-dev libgl1-mesa-dev libglu1-mesa-dev
+
+Download and build GLFW3 from git (you also need cmake tool):
+
+    git clone https://github.com/glfw/glfw.git glfw
+    cd glfw
+    cmake .
+    sudo make install
+
+####Installing OpenAL Soft
+    sudo apt-get install libopenal1 libopenal-dev
+
+###Compiling raylib source code
+
+Before compiling your game, raylib library must be recompiled for Linux. To do that, just navigate to `raylib\src\` folder and run:
+
+    make PLATFORM=PLATFORM_DESKTOP
+
+NOTE: By default raylib is compiled for OpenGL 3.3 Core graphics API backend; to compile for OpenGL 1.1 graphics API just type:
+
+    make PLATFORM=PLATFORM_DESKTOP GRAPHICS=GRAPHICS_API_OPENGL_11
+
+###Compiling raylib examples
+Just move to folder `raylib/examples/` and run:
+
+    make PLATFORM=PLATFORM_DESKTOP
+
+To compile just one specific example:
+
+    make core_basic_window PLATFORM=PLATFORM_DESKTOP
+
+To force one example recompile:
+
+    make core_basic_window PLATFORM=PLATFORM_DESKTOP -B