Updated readme

README.md

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 ##CSE 2102 Project
 
 #####Things to do, roughly in order of importance:
-* [x] Basic rendering - Billy
-* [x] Controls - Billy
-* [ ] Level loading
+* [x] Basic rendering (ability to render player, backbone for other graphics)
+* [x] Controls
+* [x] Basic Tiles/Walls
+  * [x] Tile/Wall rendering
+* [x] Basic level loading (hard-coded levels)
+  * [ ] Advanced level loading (stored in text files)
+* [ ] Collision checking
 * [ ] Menus
   * [ ] Main menu
   * [ ] Pausing
 * [ ] Basic Obstacles/Traps/Enemies
   * [ ] Obstacle/Trap/Enemy rendering
-* [ ] Basic Tiles/Walls
-  * [ ] Tile/Wall rendering
 
 #####Things we would like to add eventually:
 * [ ] Music