Añadiendo mlx

lib/mlx/docs/Shaders.md

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+<!----------------------------------------------------------------------------
+Copyright @ 2021-2022 Codam Coding College. All rights reserved.
+See copyright and license notice in the root project for more information.
+----------------------------------------------------------------------------->
+
+# Shaders
+
+In computer graphics, a shader is a type of computer program used for shading in 3D/2D scenes (the production of appropriate levels of light, darkness, and color in a rendered image). MLX42 exposes the shaders and compiles them into the library for portability.
+
+```glsl
+
+// Example of shader code, GLSL is similar to C but not quite.
+
+#version 330 core
+
+layout(location = 0) in vec3 aPos;
+layout(location = 1) in vec2 aTexCoord;
+
+out vec2 TexCoord;
+uniform mat4 ProjMatrix;
+
+void main()
+{
+	gl_Position = ProjMatrix * vec4(aPos, 1.0);
+	TexCoord = aTexCoord;
+}
+
+```
+
+## Beware
+
+Shaders aren't really meant to be used by students but are more there for the convenience of developers. (though some advanced students might make some use of them)
+
+# Compilation
+
+Shaders are converted into a `.c` appropriate format and then compiled into the library and referenced via a `extern` global variable appropriately named `vert_shader` & `frag_shader`. The reason this is done is to keep the final game/executable portable, that is being able to use it at any given location within a filesystem, while still being easy to work on the shaders instead of having to mess with it in the `.c` files directly. 
+