Updated raylib data structures (markdown)

raylib-data-structures.md

@@ -1,27 +1,30 @@
 raylib provides some basic data structures to organize game information. Those structures are quite common in most of the engines out there:
 ```c
+    // Basic data structures
     struct Color;           // Color type, RGBA (32bit)
     struct Rectangle;       // Rectangle type
     struct Vector2;         // Vector2 type
     struct Vector3;         // Vector3 type
     struct Matrix;          // Matrix type (OpenGL style 4x4)
     
-    struct Image;           // Image type (multiple data formats supported)
-                            // NOTE: Data stored in CPU memory (RAM)               
-    struct Texture2D;       // Texture2D type (multiple internal formats supported)
-                            // NOTE: Data stored in GPU memory (VRAM)
+    // 2D data (pixels, font...)
+    struct Image;           // Image type (data stored in CPU memory (RAM))               
+    struct Texture2D;       // Texture2D type (data stored in GPU memory (VRAM))
     struct RenderTexture2D; // RenderTexture2D type, for texture rendering
     struct SpriteFont;      // SpriteFont type, includes texture and chars data
     
     struct Camera;          // Camera type, defines 3d camera position/orientation
     struct Camera2D;        // Camera2D type, defines a 2d camera
+
+    // 3D data (vertex, material properties...)
     struct Mesh;            // Vertex data definning a mesh
     struct Shader;          // Shader type (generic shader)
     struct Material;        // Material type
-    struct Light;           // Light type, defines light properties
     struct Model;           // Basic 3d Model type
+
     struct Ray;             // Ray type (useful for raycast)
     
+    // Audio related data
     struct Wave;            // Wave type, defines audio wave data
     struct Sound;           // Basic Sound source and buffer
     struct Music;           // Music type (file streaming from memory)