Added Data Structure description (To add more later)

README.md

@@ -10,6 +10,11 @@ On OSX you need to install:
 brew install sdl2
 ```
 
+If you don't have brew please run the following command to install:
+```
+/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+```
+
 ## Build & Run
 
 ```
@@ -18,4 +23,33 @@ cargo run
 
 ## Game
 
-<img width="912" alt="screen shot 2018-07-07 at 18 03 04" src="https://user-images.githubusercontent.com/223045/42412193-390bd758-8210-11e8-8cf3-45792e69aa27.png">
+<img width="912" alt="screen shot 2018-07-07 at 18 03 04" src="https://user-images.githubusercontent.com/223045/42412193-390bd758-8210-11e8-8cf3-45792e69aa27.png">
+
+# About
+
+This Project uses the OpenGL Library "SDL2" for Graphics functionality (Creating Windows, Rendering, etc).
+
+The Data Structures used for the game are as follows:
+```
+pub struct Game {
+  .......
+}
+```
+
+The Game struct contains all the objects needed to run the game such as the player Actor, the walls (which are stored in a vector), etc
+
+```
+struct Assets {
+  ..........
+}
+```
+
+The Assets struct contains all the assets used in the game (mainly images, fonts and sound so far)
+
+```
+  struct Actor {
+  ..........
+}
+```
+
+The Actor struct contains all the variables needed for an Actor. An actor is basically a game object and can be either a wall, player or an enemy.