Update README.md

README.md

@@ -71,4 +71,12 @@ Rayhan:
 - Add coins to the game. We must generate multiple coins in a cluster. We can also update the shape of the coins to be different sizes of blocks probabilistically. Add text to screen to track distance traveled and coins collected.
 - Additional features such as:
     - Gravity swap: Power-up that can switch gravity of Jetpack character
-    - Add a magnet powerup to the game and associate a gravitational force with all the coin objects relative to the coin powerup collected. Attribute time period for the existence of the magnetic powerup in the game.
+    - Add a magnet powerup to the game and associate a gravitational force with all the coin objects relative to the coin powerup collected. Attribute time period for the existence of the magnetic powerup in the game.
+
+## Citations
+
+"Jetpack Joyride Wallpapers." Wallpaper Cave, wallpapercave.com/jetpack-joyride-wallpapers. Accessed 1 June 2024.
+
+Pauli, Gustavo. "Jetpack-Goodride/assets." GitHub, github.com/Gustavo-Pauli/Jetpack-Goodride/tree/master/assets. Accessed 1 June 2024.
+
+"Jetpack Joyride Wiki." Fandom, jetpackjoyride.fandom.com/wiki/Jetpack_Joyride_Wiki. Accessed 1 June 2024.