Update README.md

Author: ChiaLingWeng

README.md

@@ -7,7 +7,7 @@ Go to our project ([OurGame - The ZombiNTU](https://github.com/PythonFinalProjec
 Use map created by Tiled editor and build camera perspective for 2P/1P player(s)
 
 
-![](https://i.imgur.com/NuBjZtA)
+![](https://i.imgur.com/NuBjZtA.png)
 
 There are 3 different types of objects in our maps, Stone, Proof and Block.
 
@@ -28,5 +28,5 @@ Clear background created using Tiled editor and load with pytmx
 Use camera.update(player_list) to track position of players, then showing on the camera.show surface 
 
 `checkobj1obj2Collision`\
-Track if there are collision events e.g. EnemyStoneCollision, BulletProofCollision...
+Track if there are collision events e.g. EnemyStoneCollision, BulletProofCollision...\
 If True then trigger bounce back event or remove map object from background